How many flights depart from Milwaukee to Seattle on average per week?

5 flights are operational weekly from Milwaukee to Seattle as of October 2026. The most popular departure day for this route is Wed, with 60% of flights per week taking off on this day.

What is the cheapest airline that flies from Milwaukee-Mitchell to Seattle/Tacoma Intl?

United Airlines, Sun Country Air, and Delta are the most popular carriers operating from Milwaukee-Mitchell to Seattle/Tacoma Intl

When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport are updated daily.

How old do you have to be to fly from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

R2 934 Cheap Flights from Milwaukee to Seattle in 2026/27

Find the cheapest flights from Milwaukee to Seattle

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

15:59 - 21:21MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

7h 22m1 stop Denver Intl

5:07 - 14:25SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

7h 18m1 stop Denver Intl

R5 360United Airlines

Wed, Dec 16 - Wed, Jan 6

14:18 - 19:03MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

6h 45m1 stop Chicago O'Hare Intl

14:30 - 22:15SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

5h 45m1 stop Chicago O'Hare Intl

R5 377United Airlines

Sat, Oct 31 - Sat, Nov 7

5:30 - 15:51MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

12h 21m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

7:00 - 15:11SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

6h 11m1 stop Chicago O'Hare Intl

R5 442United Airlines

Tue, Oct 20 - Sat, Oct 24

9:23 - 20:56MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

13h 33m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

12:45 - 20:59SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

6h 14m1 stop Denver Intl

R5 459United Airlines

Sat, Oct 31 - Sat, Nov 7

5:30 - 14:17MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

10h 47m2 stops Chicago O'Hare Intl San Francisco

10:44 - 22:59SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

10h 15m2 stops San Francisco Chicago O'Hare Intl

R5 524United Airlines

Tue, Oct 20 - Sat, Oct 24

16:56 - 22:05MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

7h 09m1 stop Detroit Metropolitan Wayne County

23:15 - 8:50SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

7h 35m1 stop Detroit Metropolitan Wayne County

R5 852Delta

Wed, Oct 21 - Sat, Nov 14

19:40 - 1:20MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

7h 40m1 stop Las Vegas Harry Reid Intl

11:35 - 23:15SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

9h 40m2 stops Sacramento Intl Phoenix Sky Harbor Intl

R5 934Southwest

Mon, Nov 9 - Wed, Nov 11

18:10 - 1:20MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

9h 10m2 stops Denver Intl Las Vegas Harry Reid Intl

11:35 - 23:15SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

9h 40m2 stops Sacramento Intl Phoenix Sky Harbor Intl

R6 016Southwest

Mon, Nov 9 - Wed, Nov 11

16:50 - 0:45MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

9h 55m1 stop Chicago Midway

0:15 - 12:05SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

9h 50m2 stops Chicago Midway Baltimore/Washington

R6 032Southwest

Thu, Nov 5 - Sun, Nov 8

18:10 - 23:00MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

6h 50m1 stop Denver Intl

11:35 - 23:15SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

9h 40m2 stops Sacramento Intl Phoenix Sky Harbor Intl

R6 098Southwest

Mon, Nov 2 - Wed, Nov 4

Cheap last-minute flights

Enter your travel dates to find the best prices.

5:00 - 9:36MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

6h 36m1 stop Chicago O'Hare Intl

23:13 - 7:07SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

5h 54m1 stop Chicago O'Hare Intl

R8 262United Airlines

Tue, Oct 6 - Tue, Oct 20

14:20 - 21:15MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

8h 55m2 stops Chicago O'Hare Intl Denver Intl

5:05 - 13:34SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

6h 29m1 stop Denver Intl

R9 081United Airlines

Fri, Oct 2 - Tue, Nov 17

13:05 - 21:40MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

10h 35m2 stops Nashville Intl Denver Intl

12:00 - 0:10SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

10h 10m1 stop Phoenix Sky Harbor Intl

R9 278Southwest

Sat, Oct 3 - Sat, Oct 10

13:05 - 21:40MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

10h 35m2 stops Nashville Intl Denver Intl

11:40 - 0:15SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

10h 35m2 stops Oakland Las Vegas Harry Reid Intl

R9 360Southwest

Sat, Oct 3 - Sat, Oct 10

14:39 - 21:15MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

8h 36m1 stop Denver Intl

23:13 - 7:07SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

5h 54m1 stop Chicago O'Hare Intl

R9 491United Airlines

Tue, Oct 6 - Thu, Oct 22

15:59 - 20:36MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

6h 37m1 stop Minneapolis St Paul

13:42 - 21:13SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

5h 31m1 stop Minneapolis St Paul

R9 540Delta

Sat, Oct 3 - Mon, Oct 12

14:39 - 23:26MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

10h 47m2 stops Denver Intl San Francisco

23:13 - 7:07SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

5h 54m1 stop Chicago O'Hare Intl

R9 573United Airlines

Tue, Oct 6 - Thu, Oct 22

5:00 - 9:36MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

6h 36m1 stop Chicago O'Hare Intl

23:13 - 10:07SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

8h 54m1 stop Chicago O'Hare Intl

R9 786United Airlines

Mon, Oct 5 - Tue, Oct 20

9:33 - 14:49MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

7h 16m1 stop Detroit Metropolitan Wayne County

23:50 - 10:09SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

8h 19m1 stop Minneapolis St Paul

R9 885Delta

Sun, Oct 4 - Mon, Oct 12

5:00 - 9:38MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

6h 38m1 stop Chicago O'Hare Intl

8:30 - 17:04SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

6h 34m1 stop Denver Intl

R9 934United Airlines

Sun, Oct 4 - Tue, Oct 6

Cheap direct flights

Enter your travel dates to find the best prices.

16:40 - 19:10MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 30mdirect

9:45 - 15:42SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 57mdirect

R6 180Alaska Airlines

Sat, Nov 14 - Tue, Nov 17

15:25 - 17:54MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 29mdirect

8:35 - 14:27SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 52mdirect

R6 508Alaska Airlines

Wed, Jan 6 - Thu, Jan 21

15:25 - 17:54MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 29mdirect

8:35 - 14:27SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 52mdirect

R6 836Alaska Airlines

Thu, Feb 4 - Mon, Feb 8

16:25 - 19:04MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 39mdirect

9:12 - 15:01SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 49mdirect

R6 918Alaska Airlines

Tue, Dec 15 - Sun, Jan 3

16:40 - 19:10MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 30mdirect

9:45 - 15:42SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 57mdirect

R7 164Alaska Airlines

Tue, Nov 17 - Wed, Nov 18

15:59 - 18:40MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 41mdirect

8:35 - 14:27SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 52mdirect

R7 245Alaska Airlines

Sun, Dec 20 - Thu, Jan 7

16:25 - 19:04MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 39mdirect

9:38 - 15:27SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 49mdirect

R7 491Alaska Airlines

Tue, Dec 8 - Fri, Dec 11

6:06 - 8:51MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 45mdirect

9:12 - 15:01SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 49mdirect

R7 655Alaska Airlines

Sat, Dec 19 - Sat, Dec 26

16:33 - 19:08MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 35mdirect

9:43 - 15:35SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 52mdirect

R8 311Alaska Airlines

Sun, Nov 22 - Sat, Nov 28

14:50 - 17:18MKE Milwaukee-Mitchell-SEA Seattle/Tacoma Intl

4h 28mdirect

8:02 - 13:52SEA Seattle/Tacoma Intl-MKE Milwaukee-Mitchell

3h 50mdirect

R8 639Alaska Airlines

Sun, Mar 21 - Fri, Mar 26

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United Airlines flights from Milwaukee to Seattle

Our best United Airlines deals on Milwaukee to Seattle flight tickets

United Airlines

Dec 16

MKE15:59Milwaukee-Mitchell

7h 22m

1 stop

SEA21:21Seattle/Tacoma Intl

Jan 6

SEA5:07Seattle/Tacoma Intl

7h 18m

1 stop

MKE14:25Milwaukee-Mitchell

R5 360

United Airlines

Oct 31

MKE14:18Milwaukee-Mitchell

6h 45m

1 stop

SEA19:03Seattle/Tacoma Intl

Nov 7

SEA14:30Seattle/Tacoma Intl

5h 45m

1 stop

MKE22:15Milwaukee-Mitchell

R5 377

United Airlines

Oct 20

MKE5:30Milwaukee-Mitchell

12h 21m

2 stops

SEA15:51Seattle/Tacoma Intl

Oct 24

SEA7:00Seattle/Tacoma Intl

6h 11m

1 stop

MKE15:11Milwaukee-Mitchell

R5 442

Southwest flights from Milwaukee to Seattle

Our best Southwest deals on Milwaukee to Seattle flight tickets

Southwest

Nov 9

MKE19:40Milwaukee-Mitchell

7h 40m

1 stop

SEA1:20Seattle/Tacoma Intl

Nov 11

SEA11:35Seattle/Tacoma Intl

9h 40m

2 stops

MKE23:15Milwaukee-Mitchell

R5 934

Southwest

Nov 9

MKE18:10Milwaukee-Mitchell

9h 10m

2 stops

SEA1:20Seattle/Tacoma Intl

Nov 11

SEA11:35Seattle/Tacoma Intl

9h 40m

2 stops

MKE23:15Milwaukee-Mitchell

R6 016

Southwest

Nov 5

MKE16:50Milwaukee-Mitchell

9h 55m

1 stop

SEA0:45Seattle/Tacoma Intl

Nov 8

SEA0:15Seattle/Tacoma Intl

9h 50m

2 stops

MKE12:05Milwaukee-Mitchell

R6 032

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Wed 16/12

15:59-21:21

1 stop7h 22m

Seattle/Tacoma Intl

Wed 6/1

5:07-14:25

1 stop7h 18m

R5 360

Fastest return journey

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Sat 31/10

14:18-19:03

1 stop6h 45m

Seattle/Tacoma Intl

Sat 7/11

14:30-22:15

1 stop5h 45m

R5 377

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Tue 20/10

5:30-15:51

2 stops12h 21m

Seattle/Tacoma Intl

Sat 24/10

7:00-15:11

1 stop6h 11m

R5 442

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Sat 31/10

9:23-20:56

2 stops13h 33m

Seattle/Tacoma Intl

Sat 7/11

12:45-20:59

1 stop6h 14m

R5 459

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Tue 20/10

5:30-14:17

2 stops10h 47m

Seattle/Tacoma Intl

Sat 24/10

10:44-22:59

2 stops10h 15m

R5 524

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Wed 21/10

16:56-22:05

1 stop7h 09m

Seattle/Tacoma Intl

Sat 14/11

23:15-8:50

1 stop7h 35m

R5 852

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Mon 9/11

19:40-1:20

1 stop7h 40m

Seattle/Tacoma Intl

Wed 11/11

11:35-23:15

2 stops9h 40m

R5 934

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Mon 9/11

18:10-1:20

2 stops9h 10m

Seattle/Tacoma Intl

Wed 11/11

11:35-23:15

2 stops9h 40m

R6 016

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Thu 5/11

16:50-0:45

1 stop9h 55m

Seattle/Tacoma Intl

Sun 8/11

0:15-12:05

2 stops9h 50m

R6 032

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Mon 2/11

18:10-23:00

1 stop6h 50m

Seattle/Tacoma Intl

Wed 4/11

11:35-23:15

2 stops9h 40m

R6 098

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Milwaukee to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Milwaukee and Seattle?

Prices are currently typical for flights on this route.

Typical prices usually range from R4 983 to R7 327.
The lowest price recently found on this route was R5 360.

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from Milwaukee is in February. Flight prices, which tend to average around R4 049, are often lower during this time because this is during the off-season. If you aren’t able to travel to Seattle during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of R4 869.

How far in advance should I book a flight from Milwaukee to Seattle?

You are more likely to see cheaper flights to Seattle from Milwaukee when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around R6 035 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Milwaukee for as low as R5 295 on momondo.

How have Milwaukee to Seattle flight prices changed over time?

As of October 2026, prices for Milwaukee to Seattle flights are approximately 47% more expensive when compared to flights at the same time last year.

When to book flights from Milwaukee to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Milwaukee to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Milwaukee to Seattle (MKE to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to Seattle

Best price found	R2 934
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Milwaukee in the past 72 hours is R2 934. The best return flight deal from Milwaukee to Seattle found on momondo in the last 72 hours is R5 360.

Direct flights go from Milwaukee to Seattle every day.

There is 1 airport in Seattle. From Milwaukee there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

Frequently asked questions about flying from Milwaukee to Seattle

How far is Milwaukee-Mitchell to Seattle/Tacoma Intl by plane?
The straight-line distance from Milwaukee-Mitchell to Seattle/Tacoma Intl is 2714,4 km.
When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport are updated daily.
How old do you have to be to fly from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Milwaukee to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Milwaukee to Seattle is Boeing 737 (51,24% of total bookings). The next most popular plane models are Boeing 737-800 (9,45%), Boeing 737 MAX 9 (7,21%), and Boeing 737-900 (6,22%).

Lynnwood

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Milwaukee.

Can I find flights from Milwaukee to Seattle with flexible booking policies on momondo?

All flight searches from Milwaukee to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Milwaukee to Seattle?

Once you have performed a search for Milwaukee to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Milwaukee to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Milwaukee and alert you when they change.