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CA $394 Cheap Flights from Moline (MLI) to Seattle (SEA)

View CA $394 flight on Wed, Sep 2, 2026Opens in a new window

Popular airlines from Quad City Intl. Airport (MLI) to Seattle-Tacoma International Airport (SEA)

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Cheap flights from Moline (MLI) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $394 for one-way flights and CA $503 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $503 Roundtrip, found 2 days ago
CA $503
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $503 found 2 days ago
American Airlines
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $559 Roundtrip, found 2 days ago
CA $559
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $559 found 2 days ago
American Airlines
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $616 Roundtrip, found 2 days ago
CA $616
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $616 found 2 days ago
American Airlines
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $644 Roundtrip, found 2 days ago
CA $644
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $644 found 2 days ago
American Airlines
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $672 Roundtrip, found 2 days ago
CA $672
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $672 found 2 days ago
American Airlines
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $685 Roundtrip, found 2 days ago
CA $685
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $685 found 2 days ago
American Airlines
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $700 Roundtrip, found 2 days ago
CA $700
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $700 found 2 days ago
Delta
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $701 Roundtrip, found 2 days ago
CA $701
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $701 found 2 days ago
United
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $756 Roundtrip, found 2 days ago
CA $756
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $756 found 2 days ago
Alaska Airlines
Wed, Sep 2 - Wed, Sep 9
MLI
Moline
SEA
Seattle
CA $1,160 Roundtrip, found 2 days ago
CA $1,160
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Sep 2 from Moline to Seattle, returning Wed, Sep 9, priced at CA $1,160 found 2 days ago

Find the cheapest month to fly from Moline (MLI) to Seattle (SEA)

February is typically the cheapest month to fly

From CA $438 - CA $1,298 per traveller.

Frequently asked questions

How much does a flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find one-way and return flights from MLI to SEA with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when MLI to SEA ticket fares go up or down.
What is the cheapest month to fly from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
April is typically the cheapest month to fly from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with average return fares around CA$526. April often sees lower prices as it falls outside of peak holiday or summer travel seasons, leading to reduced demand. Other budget-friendly months to consider for this route include January and March.
Which airlines fly direct from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter MLI to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
American Airlines is one of the cheapest airlines offering connecting flights from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with return tickets starting from around CA$398 for flights that can be booked for departure within the next year. These prices are for one adult in economy/coach class. American Airlines offers connecting flights with a layover in Chicago (ORD-O'Hare Intl.). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest months to fly from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are typically April and January, with average return flights costing around CA$526. These months can be a great option if you're looking for more affordable fares. However, to find the absolute best time that balances both price and flight options, you might want to consider when these cheaper months also align with higher travel demand, giving you more flexibility with schedules.
How many flights per day from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 23 connecting flights per day from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Some common connection points include O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs around 5:00 AM. This service is operated by American Airlines. This is a seasonal service, active only in August. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) on a Wednesday, with around 17 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, United, and Delta. Flight schedules are fairly consistent throughout the week, so you'll have plenty of options regardless of the day you choose to fly.
What are the most popular departure times for flights from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the early morning, from 6am to 9am. Many major carriers, including United, American Airlines and Alaska Airlines, offer flights during this window. Many travellers prefer this because it allows for an early start to their journey, giving them more time to enjoy their destination upon arrival.
How long does it take to fly from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are no nonstop flights from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). The distance between these two airports is approximately 2591 kilometres. Flights with one stop typically take around 7 hours 48 minutes. If you have two or more stops, your travel time will be longer, usually around 11 hours 48 minutes. Keep in mind that actual flight times can vary based on factors like layover duration, routing, and wind patterns.
Can you fly business or first class from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Yes, you can fly business class or first class between MLI and SEA. You can fly business class with Delta.First class cabins are available on Alaska Airlines, Delta, United, and American Airlines.
How do I earn miles on a Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle, WA (SEA) from Moline, IL (MLI)?
If you're planning to travel to Seattle from Quad City Intl. (MLI), you can fly directly into Seattle - Tacoma Intl. (SEA) which offers international flights and connections. Some flights may connect through major hubs like O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), Dallas-Fort Worth Intl. (DFW) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Moline, IL (MLI-Quad City Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Quad City Intl.
Destination airport
Seattle - Tacoma Intl.
Roundtrip price
CA $503
Distance
2575 km

Book with confidence

Moline to Seattle Flights

The easy way to book your flights from Moline to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Moline whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Moline to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from Quad City Intl., MLI to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Moline to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Moline currently is just CA $503 rising to CA $1,160.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Moline 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Moline to Seattle Flights

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