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$283+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
MLI — SEA
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$289
(American Airlines)

One-way from

$283
(Delta)

Popular in

July

Cheapest in

February

Average price

$636
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. 19% potential increase in price ($117 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/29. 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 10/2210:42 amMLI - SEA
1 stop8h 12mAmerican Airlines
Fri 10/2412:34 amSEA - MLI
1 stop8h 25mAmerican Airlines
Deal found 7/29$289
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:59 pmMLI - SEA
1 stop9h 00mDelta
Sat 9/66:00 amSEA - MLI
1 stop8h 19mDelta
Deal found 7/26$369
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:00 amMLI - SEA
1 stop8h 34mAlaska Airlines
Tue 9/912:59 amSEA - MLI
1 stop7h 51mAlaska Airlines
Deal found 7/26$379
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:30 amMLI - SEA
1 stop7h 01mUnited Airlines
Tue 9/96:25 amSEA - MLI
2 stops12h 47mUnited Airlines
Deal found 7/26$384

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 29, 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

10:42 am-4:54 pm

1 stop8h 12m

Seattle/Tacoma Intl

Fri 10/24

12:34 am-10:59 am

1 stop8h 25m

$289

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Thu 9/4

4:59 pm-11:59 pm

1 stop9h 00m

Seattle/Tacoma Intl

Sat 9/6

6:00 am-4:19 pm

1 stop8h 19m

$369

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 9/3

6:00 am-12:34 pm

1 stop8h 34m

Seattle/Tacoma Intl

Tue 9/9

12:59 am-10:50 am

1 stop7h 51m

$379

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Mon 9/1

6:30 am-11:31 am

1 stop7h 01m

Seattle/Tacoma Intl

Tue 9/9

6:25 am-9:12 pm

2 stops12h 47m

$384

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 8/23

4:59 pm-11:59 pm

1 stop9h 00m

$283

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 8/23

8:20 am-3:52 pm

2 stops9h 32m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 July 25, 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 $389). 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 July 29, 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.

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 29, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United 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

Food

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Delta
8.0
Very good
7,979 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

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.

  • 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 $289 on this airline. Additional options worth looking into are Delta and Alaska Airlines, starting at $369 and $379 round-trip. You may be able to fly from Moline to Seattle for 38% 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 $389). 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
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$447FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$373Average$535FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$433Average$668FlexibilityNo cancel feeOn-time75%

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