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$92+ Cheap flights from Seattle to Milwaukee (SEA - MKE)

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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MKE
Apr 28 — May 51
Tue 4/28
Tue 5/5
1 adult, Economy
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Find cheap flights from Seattle to Milwaukee 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”

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3. Compare prices and book

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Milwaukee-Mitchell are usually found in January or February, booked 66 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Seattle to Milwaukee

Cheapest flights from Seattle to Milwaukee
Explore the most affordable flight options available from Seattle to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 29, 2026.

This Southwest deal was found by Cheapflights users on 3/25. 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 4/1411:40 am
SEA
-
MKE
1 stop8h 20m
Southwest
Tue 4/214:05 pm
MKE
-
SEA
1 stop10h 05m
Southwest
Deal found 3/25$218
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Mon 4/2712:59 am
SEA
-
MKE
1 stop8h 00m
American Airlines
Thu 4/305:00 pm
MKE
-
SEA
1 stop9h 44m
American Airlines
Deal found 3/25$227
This Southwest deal was found by Cheapflights users on 3/24. 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.
Wed 5/2711:45 pm
SEA
-
MKE
1 stop9h 10m
Southwest
Mon 6/14:50 pm
MKE
-
SEA
1 stop9h 15m
Southwest
Deal found 3/24$232
This Delta deal was found by Cheapflights users on 3/26. 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.
Tue 5/2611:59 pm
SEA
-
MKE
1 stop6h 32m
Delta
Wed 6/35:48 pm
MKE
-
SEA
1 stop7h 55m
Delta
Deal found 3/26$233
This Southwest deal was found by Cheapflights users on 3/25. 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.
Wed 6/311:40 am
SEA
-
MKE
2 stops9h 30m
Southwest
Mon 6/86:30 pm
MKE
-
SEA
2 stops9h 10m
Southwest
Deal found 3/25$237
This Southwest deal was found by Cheapflights users on 3/25. 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 4/2411:05 am
SEA
-
MKE
1 stop9h 15m
Southwest
Tue 4/285:30 am
MKE
-
SEA
1 stop7h 25m
Southwest
Deal found 3/25$246
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Mon 5/410:25 am
SEA
-
MKE
1 stop10h 02m
American Airlines
Thu 5/145:37 pm
MKE
-
SEA
1 stop8h 59m
American Airlines
Deal found 3/25$247
This Southwest deal was found by Cheapflights users on 3/24. 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.
Wed 5/611:40 am
SEA
-
MKE
2 stops9h 30m
Southwest
Fri 5/86:30 pm
MKE
-
SEA
1 stop8h 10m
Southwest
Deal found 3/24$251
This Southwest deal was found by Cheapflights users on 3/25. 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.
Thu 6/45:30 am
SEA
-
MKE
2 stops9h 40m
Southwest
Mon 6/87:30 pm
MKE
-
SEA
1 stop7h 20m
Southwest
Deal found 3/25$252
This Delta deal was found by Cheapflights users on 3/25. 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 5/2711:59 pm
SEA
-
MKE
1 stop6h 32m
Delta
Mon 6/15:01 pm
MKE
-
SEA
1 stop7h 45m
Delta
Deal found 3/25$253
This United Airlines deal was found by Cheapflights users on 3/24. 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 5/2810:52 am
SEA
-
MKE
1 stop7h 54m
United Airlines
Mon 6/15:00 am
MKE
-
SEA
1 stop6h 40m
United Airlines
Deal found 3/24$254

Find flight deals from Seattle to Milwaukee

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Milwaukee (MKE). 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 March 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$218
(Southwest)

One-way from

$92
(CheapOair)

Popular in

June

Cheapest in

January

Average price

$337

Good round-trip deal

$337 or less

Good one-way deal

$158 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Milwaukee-Mitchell flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Milwaukee-Mitchell flights.
Search Deals
From Seattle/Tacoma Intl to Milwaukee-Mitchell
Search Deals
One-way flight from Seattle/Tacoma Intl to Milwaukee-Mitchell
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Milwaukee-Mitchell.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Milwaukee-Mitchell.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Milwaukee 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 March 29, 2026.
Use the filters below to find and compare flights from Seattle to Milwaukee that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 4/22

9:20 am-9:35 pm

2 stops10h 15m

Milwaukee-Mitchell

Wed 4/29

3:55 pm-11:55 pm

1 stop10h 00m

$252

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Fri 6/5

9:25 pm-9:25 am

1 stop10h 00m

Milwaukee-Mitchell

Mon 6/8

5:15 pm-12:25 am

1 stop9h 10m

$266

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 5/20

6:30 am-2:10 pm

1 stop5h 40m

Milwaukee-Mitchell

Sat 6/6

2:45 pm-12:10 am

2 stops11h 25m

$272

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 4/22

8:05 am-2:13 pm

Nonstop4h 08m

Milwaukee-Mitchell

Wed 4/29

7:00 am-9:27 am

Nonstop4h 27m

$277
Quickest round-trip

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Fri 5/1

6:00 pm-11:58 pm

Nonstop3h 58m

Milwaukee-Mitchell

Tue 5/5

7:00 am-9:27 am

Nonstop4h 27m

$322

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 5/27

11:59 pm-8:31 am

1 stop6h 32m

Milwaukee-Mitchell

Mon 6/8

1:15 pm-8:25 pm

1 stop9h 10m

$337

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 4/15

2:39 pm-10:30 pm

1 stop5h 51m

Milwaukee-Mitchell

Wed 5/6

5:10 am-2:36 pm

2 stops11h 26m

$338

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Thu 5/21

5:30 am-4:06 pm

1 stop8h 36m

Milwaukee-Mitchell

Sun 5/24

5:01 pm-10:48 pm

1 stop7h 47m

$339

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 5/6

11:40 am-11:10 pm

2 stops9h 30m

Milwaukee-Mitchell

Sun 5/10

6:10 am-1:40 pm

2 stops9h 30m

$343

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Sat 4/18

8:00 am-8:48 pm

2 stops10h 48m

Milwaukee-Mitchell

Fri 4/24

5:44 pm-10:33 pm

1 stop6h 49m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Milwaukee

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 Seattle to Milwaukee in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Milwaukee flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Milwaukee flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Milwaukee flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Milwaukee 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 Seattle-Milwaukee 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 Seattle to Milwaukee

Have a flexible travel schedule? Discover the best time to fly to Milwaukee from Seattle with our price prediction graph.
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 Seattle to Milwaukee

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Milwaukee. Price data was last updated on March 13, 2026.

The price you pay for your flight from Seattle to Milwaukee may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Milwaukee?

Currently, January is the cheapest month in which you can book a flight from Seattle to Milwaukee (average of $93). Flying from Seattle to Milwaukee in March is currently the most expensive (average of $177). 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 SEA to MKE?

Find hourly flight availability from Seattle to Milwaukee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 29, 2026.

When flying from Seattle to Milwaukee, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Seattle to Milwaukee?

Reviews of airlines servicing Milwaukee

Get insights into the airlines that provide service to Milwaukee. 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 Milwaukee. Reviews last updated March 29, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines from Seattle to Milwaukee have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,134 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,134 reviews
Alaska Airlines
7.9
Good
12,134 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,359 reviews
Alaska Airlines
7.9
Good
12,134 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Hawaiian Airlines
7.8
Good
2,837 reviews
Alaska Airlines
7.9
Good
12,134 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,509 reviews
Alaska Airlines
7.9
Good
12,134 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.1
Good
11,521 reviews
Alaska Airlines
7.9
Good
12,134 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Milwaukee. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Seattle to Milwaukee flight route?

    Flights from Seattle/Tacoma Intl to Milwaukee-Mitchell have been viewed 1 times in the past calendar month.

  • How long is the flight from Seattle to Milwaukee?

    Southwest and Alaska Airlines can get you from Seattle to Milwaukee in just under 4h 08m. Your travel time can differ by up to 6h 07m. There are 1689 mi between Seattle and Milwaukee. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Seattle to Milwaukee round-trip?

    Our cheapest airline available from Seattle to Milwaukee is Delta. Our recent data shows that you can find tickets from as low as $171 on this airline. Additional options worth looking into are Southwest and Hawaiian Airlines, starting at $178 and $186 round-trip. These flights start at 52% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Milwaukee one-way?

    One-way options have recently been found by users for as low as $97 on American Airlines. Other airlines that offer cheap prices include Delta from $97 and United Airlines from $115 one-way.

  • What are the most reliable airlines from Seattle to Milwaukee?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Milwaukee on time: American Airlines (82%), Alaska Airlines (82%), Air Tahiti Nui (82%).

  • What are the cheapest flights from Seattle to Milwaukee?

    Looking for the cheapest flight from Seattle to Milwaukee? While on average our users pay $303, our data indicates the cheapest price to be $128. The most popular route (Seattle/Tacoma Intl - Milwaukee-Mitchell), is priced around $232.

  • Can I find deals for flights from Seattle to Milwaukee that include hotel bookings?

    Yes. In addition to deals on Seattle to Milwaukee flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Milwaukee?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Milwaukee.

  • Can I find deals for business class flights from Seattle to Milwaukee?

    Yes. Cheapflights offers flight deals from Seattle to Milwaukee by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Milwaukee?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Milwaukee (average of $93). Flying from Seattle to Milwaukee in March is currently the most expensive (average of $177). 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.

See more FAQs

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
Port Washington
New Berlin
Oak Creek
Wauwatosa

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Top 6 airlines flying from Seattle to Milwaukee

Discover the top 6 airlines that operate flights from Seattle to Milwaukee. 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 March 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$171Average$287FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$178Average$325FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$186Average$373FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$196Average$365FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$323FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$234Average$408FlexibilityNo cancel feeOn-time75%

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