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$258+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
MLI — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Moline Quad-City to Seattle/Tacoma Intl are usually found in February or April, booked 78 days in advance, depart on a Sunday or Tuesday and return on a Saturday

Cheap 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 September 11, 2025.

Round-trip from

$289
(United Airlines)

One-way from

$258
(United Airlines)

Popular in

July

Cheapest in

February

Average price

$435
From Moline Quad-City to Seattle/Tacoma Intl
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One-way flight from Moline Quad-City to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 17% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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 10/23:40 pmMLI - SEA
1 stop8h 50mUnited Airlines
Thu 10/91:57 pmSEA - MLI
1 stop6h 46mUnited Airlines
Deal found 9/10$289
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/115:29 pmMLI - SEA
1 stop7h 01mUnited Airlines
Sat 10/255:00 amSEA - MLI
2 stops9h 54mUnited Airlines
Deal found 9/11$294
This United Airlines deal was found by Cheapflights users on 9/11. 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 11/205:20 pmMLI - SEA
1 stop7h 25mUnited Airlines
Tue 11/2511:59 pmSEA - MLI
1 stop8h 16mUnited Airlines
Deal found 9/11$305
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 10/226:32 pmMLI - SEA
1 stop7h 55mAmerican Airlines
Sat 10/2512:34 amSEA - MLI
1 stop8h 16mAmerican Airlines
Deal found 9/11$314
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/118:35 amMLI - SEA
2 stops8h 57mUnited Airlines
Sat 10/185:00 amSEA - MLI
2 stops8h 05mUnited Airlines
Deal found 9/10$316
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/66:32 pmMLI - SEA
1 stop8h 00mAmerican Airlines
Fri 10/1012:34 amSEA - MLI
1 stop8h 18mAmerican Airlines
Deal found 9/10$339
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 12/215:33 pmMLI - SEA
1 stop7h 14mUnited Airlines
Sun 12/2811:59 pmSEA - MLI
1 stop8h 13mUnited Airlines
Deal found 9/11$342
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/210:59 amMLI - SEA
1 stop10h 10mAmerican Airlines
Sun 10/512:30 amSEA - MLI
1 stop7h 44mAmerican Airlines
Deal found 9/11$344
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/103:40 pmMLI - SEA
1 stop8h 50mUnited Airlines
Sat 10/188:30 amSEA - MLI
2 stops10h 35mUnited Airlines
Deal found 9/9$359

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 September 11, 2025.
Use the filters below to find and compare flights from Moline to Seattle that are best for you.

Fly from

Moline

Fly to

Seattle

Route

Depart

Return

Price

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 10/22

6:32 pm-12:27 am

1 stop7h 55m

Seattle/Tacoma Intl

Fri 10/24

12:34 am-10:52 am

1 stop8h 18m

$289

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 10/22

5:00 pm-11:54 pm

1 stop8h 54m

Seattle/Tacoma Intl

Sat 10/25

6:00 am-4:20 pm

1 stop8h 20m

$289

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Thu 10/2

7:04 am-4:40 pm

1 stop11h 36m

Seattle/Tacoma Intl

Mon 10/6

11:24 pm-10:12 am

1 stop8h 48m

$289

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 10/11

5:29 pm-10:30 pm

1 stop7h 01m

Seattle/Tacoma Intl

Sat 10/25

5:00 am-4:54 pm

2 stops9h 54m

$294

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 10/11

10:50 am-6:45 pm

2 stops9h 55m

Seattle/Tacoma Intl

Sat 10/18

7:00 am-3:05 pm

1 stop6h 05m

$294

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Thu 11/20

5:20 pm-10:45 pm

1 stop7h 25m

Seattle/Tacoma Intl

Tue 11/25

11:59 pm-10:15 am

1 stop8h 16m

$305

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 10/22

10:42 am-4:54 pm

1 stop8h 12m

Seattle/Tacoma Intl

Sun 10/26

11:24 pm-10:14 am

1 stop8h 50m

$314

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sun 12/21

5:33 pm-10:47 pm

1 stop7h 14m

Seattle/Tacoma Intl

Sun 12/28

11:59 pm-10:12 am

1 stop8h 13m

$342

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Fri 10/10

3:40 pm-10:30 pm

1 stop8h 50m

Seattle/Tacoma Intl

Sat 10/18

8:30 am-9:05 pm

2 stops10h 35m

$359

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Fri 9/26

10:54 am-7:09 pm

1 stop10h 15m

Seattle/Tacoma Intl

Mon 9/29

3:00 pm-11:48 pm

1 stop6h 48m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 15 results
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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?

Use this chart to determine the optimal time to book a round-trip flight from Moline to Seattle. Price data was last updated on August 29, 2025.

The best time to book flights from Moline to Seattle is 78 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, January is the cheapest month in which you can book a flight from Moline to Seattle (average of $238). Flying from Moline to Seattle in June is currently the most expensive (average of $388). 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 MLI to SEA?

Find hourly flight availability from Moline 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 September 11, 2025.

When flying from Moline to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 25% versus a flight at noon.

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

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 September 11, 2025.
Read reviews from past customers who have flown Alaska Airlines, 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 7h 01m. American Airlines provides one of the quickest options available for as low as $294. 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 $228 on this airline. Additional options worth looking into are United Airlines and Alaska Airlines, starting at $373 and $433 round-trip. You may be able to fly from Moline to Seattle for 50% 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, January is the cheapest month in which you can book a flight from Moline to Seattle (average of $238). Flying from Moline to Seattle in June is currently the most expensive (average of $388). 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
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

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Alternative routes for Moline to Seattle

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Top 3 airlines flying from Moline to Seattle

Discover the top 3 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$443FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$373Average$523FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$433Average$608FlexibilityNo cancel feeOn-time75%

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