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$268+ Cheap flights from Moline to Seattle (MLI - 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
MLI — SEA
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
1 adult, Economy
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Cheap flight deals from Moline to Seattle

Cheapest flights from Moline to Seattle
Explore the most affordable flight options available from Moline to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:06 pm
MLI
-
SEA
1 stop23h 33m
Multiple Airlines
Wed 9/28:48 pm
SEA
-
MLI
1 stop13h 35m
Multiple Airlines
Deal found 7/24$339
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:32 am
MLI
-
SEA
1 stop10h 15m
American Airlines
Sun 8/3011:56 pm
SEA
-
MLI
1 stop9h 17m
American Airlines
Deal found 7/26$359
This Delta deal was found by Cheapflights users on 7/27. 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.
Thu 10/811:08 am
MLI
-
SEA
2 stops12h 57m
Delta
Sun 10/1110:35 pm
SEA
-
MLI
1 stop9h 47m
Delta
Deal found 7/27$364
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:10 pm
MLI
-
SEA
1 stop8h 42m
Delta
Mon 10/1210:35 pm
SEA
-
MLI
1 stop9h 46m
Delta
Deal found 7/24$369
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:04 am
MLI
-
SEA
2 stops13h 01m
Delta
Wed 11/46:00 am
SEA
-
MLI
2 stops14h 34m
Delta
Deal found 7/24$379
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 10/151:05 pm
MLI
-
SEA
1 stop22h 55m
Multiple Airlines
Wed 10/219:16 pm
SEA
-
MLI
1 stop12h 29m
Multiple Airlines
Deal found 7/27$390
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Fri 8/211:15 pm
MLI
-
SEA
2 stops11h 49m
United Airlines
Fri 8/2810:41 am
SEA
-
MLI
1 stop6h 50m
United Airlines
Deal found 7/24$392
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:32 pm
MLI
-
SEA
1 stop7h 54m
American Airlines
Tue 9/83:35 pm
SEA
-
MLI
1 stop6h 33m
American Airlines
Deal found 7/26$399
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Sat 10/3110:40 am
MLI
-
SEA
2 stops10h 06m
United Airlines
Mon 11/212:45 pm
SEA
-
MLI
2 stops8h 14m
United Airlines
Deal found 7/24$406

Find flight deals from Moline to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Moline (MLI) 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 July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$339
(Kiwi.com)

One-way from

$304
(United Airlines)

Popular in

July

Cheapest in

April

Average price

$570
Provider with most accurate pricing for Moline Quad-City-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Moline Quad-City-Seattle/Tacoma Intl flights.
Search Deals
From Moline Quad-City to Seattle/Tacoma Intl
Search Deals
One-way flight from Moline Quad-City to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Moline 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 July 28, 2026.
Use the filters below to find and compare flights from Moline to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 10/24

6:32 am-11:27 am

1 stop6h 55m

Seattle/Tacoma Intl

Mon 10/26

8:35 pm-10:05 am

2 stops11h 30m

$364

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Thu 10/8

11:08 am-10:05 pm

2 stops12h 57m

Seattle/Tacoma Intl

Mon 10/12

11:59 pm-10:22 am

1 stop8h 23m

$364
Quickest round-trip

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Fri 9/18

5:09 pm-10:45 pm

1 stop7h 36m

Seattle/Tacoma Intl

Tue 9/22

8:40 am-9:00 pm

2 stops10h 20m

$429

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 8/29

8:14 am-4:10 pm

1 stop9h 56m

Seattle/Tacoma Intl

Wed 9/2

11:00 pm-9:54 am

1 stop8h 54m

$459

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 8/15

5:09 pm-10:43 pm

1 stop7h 34m

Seattle/Tacoma Intl

Sat 8/22

4:35 pm-9:54 am

2 stops15h 19m

$464

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Tue 9/1

8:14 am-4:14 pm

2 stops10h 00m

Seattle/Tacoma Intl

Tue 9/8

11:00 pm-10:07 am

1 stop9h 07m

$464

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Fri 8/21

1:15 pm-11:26 pm

2 stops12h 11m

Seattle/Tacoma Intl

Fri 8/28

5:20 pm-9:54 am

2 stops14h 34m

$469

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Thu 8/20

10:30 am-9:41 pm

2 stops13h 11m

Seattle/Tacoma Intl

Mon 8/24

7:35 pm-12:22 pm

2 stops14h 47m

$469
Cheapest one-way

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 12/9

6:00 am-5:00 pm

2 stops13h 00m

$278
Quickest one-way

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Thu 12/10

1:00 pm-6:59 pm

1 stop7h 59m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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

Have a flexible travel schedule? Discover the best time to fly to Seattle from Moline 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 Moline to Seattle

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

The best time to book flights from Moline to Seattle is 22 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, April is the cheapest month in which you can book a flight from Moline to Seattle (average of $386). Flying from Moline to Seattle in July is currently the most expensive (average of $570). 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.

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

Airfare is below average for this route at the moment.

Moline to Seattle flights typically cost between $378 and $530 in August.
The cheapest round-trip price found within the last 5 days was $339 on Multiple Airlines (Aug 27-Sep 2).

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 July 28, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Moline 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.
United Airlines
7.4
Good
10,041 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Ruben,Aug 2023

IAH - SEA

The food option was limited and the Steak Salad was sketchy.
United Airlines
7.4
Good
10,041 reviews
United Airlines
7.4
Good
10,041 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Ruben,Aug 2023

IAH - SEA

The food option was limited and the Steak Salad was sketchy.
American Airlines
7.1
Good
11,836 reviews
United Airlines
7.4
Good
10,041 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Ruben,Aug 2023

IAH - SEA

The food option was limited and the Steak Salad was sketchy.

Related info for your journey

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

  • How long is the flight from Moline to Seattle?

    A quick flight from Moline to Seattle can take about 10h 15m. American Airlines provides one of the quickest options available for as low as $359. There are 1609 mi between Moline and Seattle. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from Moline to Seattle is American Airlines. Our recent data shows that you can find tickets from as low as $288 on this airline. An additional option worth looking into is United Airlines, starting at $308. You may be able to fly from Moline to Seattle for 39% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Moline to Seattle 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 Moline to Seattle?

    Currently, April is the cheapest month in which you can book a flight from Moline to Seattle (average of $386). Flying from Moline to Seattle in July is currently the most expensive (average of $570). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Moline to Seattle

Discover the top 2 airlines that operate flights from Moline 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 July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$508FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$308Average$484FlexibilityNo cancel feeOn-time69%

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