$189+ Cheap flights from Milwaukee to Seattle (MKE - SEA)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SEA
Sep 8 — Sep 151
Round-trip
1 adult, Economy
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Find cheap flights from Milwaukee to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Milwaukee-Mitchell to Seattle/Tacoma Intl are usually found in February or November, booked 52 days in advance, depart on a Wednesday or Saturday and return on a Thursday
Cheap flight deals from Milwaukee to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Milwaukee to SeattleExplore the most affordable flight options available from Milwaukee to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 9, 2026.
Explore the most affordable flight options available from Milwaukee to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 9, 2026.
This American Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:00 pm -
1 stop7h 13m
Fri 9/116:15 am -
1 stop6h 01m
Deal found 8/4![American Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:15 pm -
1 stop8h 20m
Fri 9/119:15 am -
2 stops10h 10m
Deal found 8/4![Southwest logo]()
$382
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:30 am -
1 stop9h 20m
Tue 9/1511:59 pm -
1 stop7h 19m
Deal found 8/4![Delta logo]()
$392
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:47 pm -
1 stop7h 18m
Fri 9/1111:59 pm -
1 stop8h 05m
Deal found 8/7![Delta logo]()
$395
This Alaska Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/263:03 pm -
Nonstop4h 15m
Tue 9/298:00 am -
Nonstop4h 05m
Deal found 8/7![Alaska Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:15 am -
2 stops9h 20m
Mon 9/147:00 am -
1 stop9h 15m
Deal found 8/7![Southwest logo]()
$400
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:30 am -
2 stops10h 55m
Wed 9/911:10 am -
2 stops8h 10m
Deal found 8/7![Southwest logo]()
$402
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:50 pm -
1 stop7h 14m
Fri 9/1110:58 pm -
2 stops10h 32m
Deal found 8/7![United Airlines logo]()
$407
This Expedia deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:53 pm -
Nonstop4h 25m
Tue 10/69:00 am -
Nonstop3h 55m
Deal found 8/5![Alaska Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:19 pm -
1 stop7h 48m
Sun 9/65:00 am -
1 stop6h 29m
Deal found 8/6![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:30 am -
1 stop7h 29m
Tue 9/811:59 pm -
1 stop7h 19m
Deal found 8/4![Delta logo]()
$410
Best flights from Milwaukee to SeattleDiscover carefully curated flight deals from Milwaukee to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.
Discover carefully curated flight deals from Milwaukee to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/263:03 pm -
Nonstop4h 15m
Tue 9/298:00 am -
Nonstop4h 05m
Deal found 8/9![Alaska Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:00 am -
1 stop6h 35m
Sun 9/66:30 am -
2 stops12h 30m
Deal found 8/8![United Airlines logo]()
$407
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:30 am -
2 stops9h 55m
Fri 9/119:15 am -
2 stops10h 10m
Deal found 8/4![Southwest logo]()
$424
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:59 pm -
1 stop6h 55m
Mon 8/315:30 am -
1 stop8h 32m
Deal found 8/4![Delta logo]()
$432
This Alaska Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:53 pm -
Nonstop4h 25m
Mon 10/2610:18 am -
Nonstop4h 01m
Deal found 8/7![Alaska Airlines logo]()
$422
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:50 pm -
1 stop7h 14m
Wed 9/165:00 am -
1 stop6h 34m
Deal found 8/7![United Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:45 pm -
1 stop8h 14m
Sat 10/176:00 am -
1 stop8h 05m
Deal found 8/7![Delta logo]()
$433
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:45 am -
2 stops9h 45m
Sat 10/102:15 pm -
1 stop7h 55m
Deal found 8/4![Southwest logo]()
$434
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:35 pm -
1 stop7h 20m
Tue 10/2711:30 am -
2 stops8h 15m
Deal found 8/4![Southwest logo]()
$434
This Alaska Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:02 am -
Nonstop4h 20m
Sun 9/68:08 am -
Nonstop3h 57m
Deal found 8/6![Alaska Airlines logo]()
$447
This Alaska Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/42:50 pm -
Nonstop4h 28m
Mon 2/88:02 am -
Nonstop3h 50m
Deal found 8/9![Alaska Airlines logo]()
$447
Last-minute flights from Milwaukee to SeattleDiscover last-minute flight deals from Milwaukee to Seattle. Data last updated August 9, 2026 and is based on user searches.
Discover last-minute flight deals from Milwaukee to Seattle. Data last updated August 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:47 pm -
1 stop7h 18m
Fri 9/1111:59 pm -
1 stop8h 05m
Deal found 8/7![Delta logo]()
$395
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:50 pm -
1 stop7h 14m
Fri 9/1110:58 pm -
2 stops10h 32m
Deal found 8/7![United Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:30 am -
1 stop7h 29m
Tue 9/811:59 pm -
1 stop7h 19m
Deal found 8/4![Delta logo]()
$410
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:19 pm -
1 stop7h 48m
Sun 9/65:00 am -
1 stop6h 29m
Deal found 8/6![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:20 pm -
1 stop8h 25m
Sun 9/65:10 am -
1 stop7h 35m
Deal found 8/7![Southwest logo]()
$412
This American Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:00 pm -
1 stop7h 13m
Fri 9/116:15 am -
1 stop6h 01m
Deal found 8/4![American Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:15 pm -
1 stop8h 20m
Fri 9/119:15 am -
2 stops10h 10m
Deal found 8/4![Southwest logo]()
$382
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:30 am -
2 stops10h 55m
Wed 9/911:10 am -
2 stops8h 10m
Deal found 8/7![Southwest logo]()
$402
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:30 am -
1 stop9h 20m
Tue 9/1511:59 pm -
1 stop7h 19m
Deal found 8/4![Delta logo]()
$392
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:15 am -
2 stops9h 20m
Mon 9/147:00 am -
1 stop9h 15m
Deal found 8/7![Southwest logo]()
$400
This Alaska Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/263:03 pm -
Nonstop4h 15m
Tue 9/298:00 am -
Nonstop4h 05m
Deal found 8/7![Alaska Airlines logo]()
$397
One-way flights from Milwaukee to SeattleSearch for one-way flight options from Milwaukee to Seattle. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.
Search for one-way flight options from Milwaukee to Seattle. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:00 pm -
1 stop9h 00m
Deal found 8/4![Southwest logo]()
$189
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:30 am -
2 stops10h 55m
Deal found 8/7![Southwest logo]()
$194
This American Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:03 am -
1 stop7h 06m
Deal found 8/7![American Airlines logo]()
$204
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:30 am -
1 stop9h 20m
Deal found 8/4![Delta logo]()
$207
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:30 am -
2 stops9h 12m
Deal found 8/6![United Airlines logo]()
$209
This Southwest deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:50 am -
2 stops10h 10m
Deal found 8/6![Southwest logo]()
$212
This Booking.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:35 pm -
1 stop6h 14m
Deal found 8/9![Sun Country Air logo]()
$213
This Sun Country Air deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:45 pm -
1 stop24h 08m
Deal found 8/8![Sun Country Air logo]()
$218
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:50 pm -
1 stop9h 20m
Deal found 8/7![Southwest logo]()
$224
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:50 pm -
1 stop7h 15m
Deal found 8/5![Delta logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:10 pm -
2 stops23h 09m
Deal found 8/8![Frontier logo]()
$228
This Alaska Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:53 pm -
Nonstop4h 25m
Deal found 8/7![Alaska Airlines logo]()
$229
Find flight deals from Milwaukee to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $377 (American Airlines) |
One-way from | $189 (Southwest) |
Popular in | June |
Cheapest in | February |
Average price | $427 |
Good round-trip deal | $417 or less |
Good one-way deal | $281 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Milwaukee to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 9, 2026.
Use the filters below to find and compare flights from Milwaukee to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Sat 9/26
3:03 pm-5:18 pm
Nonstop4h 15m
Seattle/Tacoma Intl
Tue 9/29
8:00 am-2:05 pm
Nonstop4h 05m
$397
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Sat 8/29
5:00 am-9:35 am
1 stop6h 35m
Seattle/Tacoma Intl
Sun 9/6
6:30 am-9:00 pm
2 stops12h 30m
$407
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Wed 10/21
3:53 pm-6:18 pm
Nonstop4h 25m
Seattle/Tacoma Intl
Mon 10/26
10:18 am-4:19 pm
Nonstop4h 01m
$422
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Sat 9/5
6:30 am-2:25 pm
2 stops9h 55m
Seattle/Tacoma Intl
Fri 9/11
9:15 am-9:25 pm
2 stops10h 10m
$424
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Fri 9/4
5:50 pm-11:04 pm
1 stop7h 14m
Seattle/Tacoma Intl
Wed 9/16
5:00 am-1:34 pm
1 stop6h 34m
$427
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Fri 8/28
6:59 pm-11:54 pm
1 stop6h 55m
Seattle/Tacoma Intl
Mon 8/31
5:30 am-4:02 pm
1 stop8h 32m
$432
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Wed 10/14
5:45 pm-11:59 pm
1 stop8h 14m
Seattle/Tacoma Intl
Sat 10/17
6:00 am-4:05 pm
1 stop8h 05m
$433
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Fri 10/2
5:45 am-1:30 pm
2 stops9h 45m
Seattle/Tacoma Intl
Sat 10/10
2:15 pm-12:10 am
1 stop7h 55m
$434
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Fri 10/23
7:35 pm-12:55 am
1 stop7h 20m
Seattle/Tacoma Intl
Tue 10/27
11:30 am-9:45 pm
2 stops8h 15m
$434
Quickest round-trip
MilwaukeeSeattle
MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl
MKESEA
Milwaukee-Mitchell
Sat 8/29
7:02 am-9:22 am
Nonstop4h 20m
Seattle/Tacoma Intl
Sun 9/6
8:08 am-2:05 pm
Nonstop3h 57m
$447
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Milwaukee to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to Seattle in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Milwaukee-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Milwaukee-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Milwaukee-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Milwaukee to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Milwaukee with our price prediction graph.
MKE-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Milwaukee to Seattle
Prices
Airlines
How far ahead should I book a flight from Milwaukee to Seattle?
To ensure you get the cheapest price possible for a flight from Milwaukee to Seattle, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Milwaukee to Seattle?
Currently, February is the cheapest month in which you can book a flight from Milwaukee to Seattle (average of $277). Flying from Milwaukee to Seattle in June is currently the most expensive (average of $460). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from MKE to SEA?
Find hourly flight availability from Milwaukee to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 9, 2026.
When flying from Milwaukee to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated August 9, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andDelta from Milwaukee to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Milwaukee to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Lynnwood
Tumwater
Centralia
Puyallup
Marysville
Kent
Ellensburg
Fife
Ocean Shores
Lakewood
Poulsbo
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Milwaukee and Seattle flights
Browse other Milwaukee and Seattle flight options. Last updated on August 9, 2026.
Other flights from Milwaukee
Browse through other flights departing from Milwaukee. Flights are based on user searches made on Cheapflights and were last updated on August 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 9, 2026.
Top 6 airlines flying from Milwaukee to Seattle
Discover the top 6 airlines that operate flights from Milwaukee to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$178 | Average$388 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$178 | Average$301 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$196 | Average$401 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$206 | Average$407 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$232 | Average$364 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$391 | FlexibilityNo cancel fee | On-time85% |