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$220 Cheap Flights from Seattle (SEA) to Moline (MLI)

View $220 flight on Sat, Sep 12, 2026Opens in a new window

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

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Cheap Flights from Seattle to Moline (SEA-MLI)

Prices were available within the past 7 days and start at $220 for one-way flights and $350 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Aug 28 - Sat, Aug 29
SEA
Seattle
MLI
Moline
$350 Roundtrip, found 6 days ago
$350
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 28 from Seattle to Moline, returning Sat, Aug 29, priced at $350 found 6 days ago
American Airlines
Thu, Sep 24 - Tue, Sep 29
SEA
Seattle
MLI
Moline
$359 Roundtrip, found 5 hours ago
$359
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Sep 24 from Seattle to Moline, returning Tue, Sep 29, priced at $359 found 5 hours ago
Delta
Tue, Sep 29 - Tue, Oct 6
SEA
Seattle
MLI
Moline
$359 Roundtrip, found 15 hours ago
$359
Roundtrip
found 15 hours ago
Select Delta flight, departing Tue, Sep 29 from Seattle to Moline, returning Tue, Oct 6, priced at $359 found 15 hours ago
United
Wed, Sep 2 - Tue, Sep 8
SEA
Seattle
MLI
Moline
$364 Roundtrip, found 12 hours ago
$364
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Sep 2 from Seattle to Moline, returning Tue, Sep 8, priced at $364 found 12 hours ago
Delta
Thu, Sep 24 - Tue, Sep 29
SEA
Seattle
MLI
Moline
$369 Roundtrip, found 5 hours ago
$369
Roundtrip
found 5 hours ago
Select Delta flight, departing Thu, Sep 24 from Seattle to Moline, returning Tue, Sep 29, priced at $369 found 5 hours ago
United
Fri, Aug 28 - Sat, Aug 29
SEA
Seattle
MLI
Moline
$369 Roundtrip, found 6 days ago
$369
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 28 from Seattle to Moline, returning Sat, Aug 29, priced at $369 found 6 days ago
United
Wed, Sep 2 - Tue, Sep 8
SEA
Seattle
MLI
Moline
$376 Roundtrip, found 12 hours ago
$376
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Sep 2 from Seattle to Moline, returning Tue, Sep 8, priced at $376 found 12 hours ago
United
Wed, Sep 2 - Tue, Sep 8
SEA
Seattle
MLI
Moline
$377 Roundtrip, found 12 hours ago
$377
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Sep 2 from Seattle to Moline, returning Tue, Sep 8, priced at $377 found 12 hours ago
United
Thu, Aug 27 - Mon, Aug 31
SEA
Seattle
MLI
Moline
$380 Roundtrip, found 22 hours ago
$380
Roundtrip
found 22 hours ago
Select United flight, departing Thu, Aug 27 from Seattle to Moline, returning Mon, Aug 31, priced at $380 found 22 hours ago
United
Tue, Sep 29 - Tue, Oct 6
SEA
Seattle
MLI
Moline
$381 Roundtrip, found 15 hours ago
$381
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Sep 29 from Seattle to Moline, returning Tue, Oct 6, priced at $381 found 15 hours ago

Alternative airports near Moline

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Quad City Intl. MLI. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $429
MLI
Quad City Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $429

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

January is typically the cheapest month to fly

From $274 - $872 per traveler.

What you need to know for your flight from Seattle - Tacoma Intl. to Quad City Intl.

Seattle (SEA) to Moline (MLI) at a glance

Travel from Seattle (SEA) to Moline (MLI) with a range of airlines offering convenient options on this domestic short-haul route. Explore various seattle to moline flights and compare itineraries from full-service carriers to discover what fits your budget and schedule best. Whether you're planning to visit Moline's notable attractions or its charming neighborhoods, you'll find all the essential details about flights to Moline from Seattle - Tacoma International Airport to Quad City International Airport.

  • Fastest flight duration: around 5h 15m in-flight, plus roughly 1h 30m layover with one stop
  • Route distance: roughly 1,600 miles (2,570 km)
  • Flights per week: around 9 departures on average
  • Typical fares (one-way): economy tickets often range from $145–$485, depending on seasonality and how far ahead you book

Flights from Seattle - Tacoma International Airport (SEA) to Quad City International Airport (MLI)

Based on recent bookings by travelers, here are the top airlines favored for journeys from Seattle to Moline, typically featuring one-stop options. Common layovers include O'Hare International Airport (ORD, with about a 2-hour layover), Dallas-Fort Worth International Airport (DFW, approximately 1 hour and 30 minutes), and Denver International Airport (DEN, around a 1 hour and 15 minutes). These choices allow you to tailor your travel experience by balancing price, total travel time, and cabin class to create the ideal itinerary.

  • United: This full-service airline provides convenient one-stop options, with one-way fares generally falling between $145 and $610. United operates about 51% of flights on this route, featuring an in-flight duration of 5 hours and 15 minutes, and an overall travel time of approximately 7 hours and 30 minutes, including layover.
  • American Airlines: Another full-service option, American Airlines offers one-stop flights with one-way prices typically ranging from $145 to $470. It covers around 42% of departures on this route, ensuring a flight time of 5 hours and 15 minutes, leading to a total journey duration of roughly 7 hours and 30 minutes, including layover.
  • Alaska Airlines: Offering one-stop services, Alaska Airlines has one-way fares that usually range from $235 to $585. It accounts for about 5% of departures on this route, with an in-flight time of 5 hours and 15 minutes, and a total travel time of around 7 hours and 30 minutes, including layover.
  • Delta: Delta provides full-service, one-stop flights, with one-way fares typically between $180 and $475. Representing roughly 2% of departures on this route, it features an in-flight duration of 5 hours and 15 minutes, resulting in a total journey time of about 7 hours and 30 minutes, including layover.

Travelers have the option to enhance their journey from Seattle to Moline with an upgrade. United Airlines provides first-class service on this route.

Best time to fly from Seattle (SEA) to Moline (MLI)

The most popular months for travelers flying from Seattle to Moline are April, July, and October, when peak temperatures in Moline reach up to 74.3°F in July. If you prefer quieter travel, consider January, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 22.6°F. For better deals, November usually offers the lowest average one-way fare around $253. Flight availability peaks in September and October, with approximately 11 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 7 flights per week.

  • Cheapest time to fly: November usually offers good deals with average one-way fare around $253, roughly 17% cheaper than the yearly average.
  • Another budget-friendly time to fly: September typically offers an average one-way fare of around $274.
  • Most flight options: September and October have the highest number of flights from Seattle to Moline, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January22.6°F (-5.2°C)Slightly Low8$299
February25.5°F (-3.6°C)Slightly Low7$354
March39.6°F (4.2°C)Average9$304
April50.2°F (10.1°C)Slightly High9$280
May61.9°F (16.6°C)Average9$305
June71.4°F (21.9°C)Average9$326
July74.3°F (23.5°C)Slightly High8$289
August73.0°F (22.8°C)Average8$352
September66.6°F (19.2°C)Average11$274
October53.6°F (12.0°C)Slightly High11$316
November40.6°F (4.8°C)Average8$253
December30.6°F (-0.8°C)Slightly Low9$318

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Seattle (SEA) to Moline (MLI)

  • Seattle to Davenport (SEA-DVN): Davenport Municipal Airport (DVN) is located approximately 12 miles from Quad City International Airport (MLI), offering convenient access for travelers.
  • Seattle to Moline (LKE-MLI): Lake Union Seaplane Base Airport (LKE) is situated about 13 miles from Seattle - Tacoma International Airport (SEA), providing a unique travel experience.
  • Seattle to Clinton (SEA-CWI): Clinton Municipal Airport (CWI) lies roughly 27 miles from Quad City International Airport (MLI), serving as a viable option for your travel needs.

How to find the best prices for flights from Seattle (SEA) to Moline (MLI)

Getting some of the best deals on flights from Seattle to Moline is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Evening departures (6 PM-12 AM) often offer lower prices, while morning flights (5 AM-12 PM) are the most popular. Additionally, flying on Wednesday tends to provide both cheaper prices and higher traveler demand.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Moline hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Quad City International Airport from Seattle - Tacoma International Airport

Moline welcomes travelers from Seattle with a range of transport options based on price, convenience, and proximity. For departures, Seattle - Tacoma International Airport is roughly a 20-minute drive (covering about 14 miles) from central Seattle. Here's how to reach Moline efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Moline, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Quad City International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Quad City International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Quad City International Airport, Centre Station, a bus station, is located about 5.6 miles away by car, while Celebration River Cruise Dock, a cruise terminal, is situated approximately 5.8 miles from the airport, also accessible by car.

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.) cost?
You can find cheap one-way flights from $220 and cheap return flights from $350 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.) with Expedia. One-way flights typically cost between $361 and $1005, and return flights often range between $396 and $1259. 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 the cheapest fares first, and use the Price Tracking tool to receive alerts when Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
February is typically the cheapest month to fly from Seattle (SEA) to Moline (MLI), with average round-trip fares around $424. This price is about 18% lower than the average throughout the year, as February often sees reduced travel demand after the holiday season. Other budget-friendly months to fly from Seattle to Moline include September and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
Enter SEA to MLI and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
United is one of the cheapest airlines offering connecting flights from Seattle, WA (SEA) to Moline, IL (MLI), with round-trip tickets starting from around $288 with a layover in Denver Intl. (DEN). 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.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
The best time to fly from Seattle (SEA) to Moline (MLI) is typically in February or October. In February, you can find return flights for around $424, making it a budget-friendly option. October is also popular, offering a good balance of flight availability and moderate prices, perfect for travelers looking to enjoy the fall scenery.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
The earliest flight from Seattle - Tacoma International Airport (SEA) to Quad City International Airport (MLI) usually departs at around 12:05 AM, operated by American Airlines. This seasonal service is available in February, and an early departure can help you maximize your time in Moline. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Quad City Intl. (MLI) are in the early morning, from 6am to 9am. This time window accounts for about 34% of passenger traffic. United Airlines and American Airlines operate flights during this period. Many travelers prefer this timing to start their journey early and enjoy their destination.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
Flights from SEA to MLI with one stop typically take around 8 hours, covering approximately 1,610 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
First class seats are offered on the SEA to MLI route. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City 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 Moline from Seattle - Tacoma Intl. (SEA)?
If you're planning to travel to Moline from Seattle - Tacoma Intl. (SEA), you can fly into Quad City Intl. (MLI) Some flights may connect through major hubs like Denver Intl. (DEN), San Francisco Intl. (SFO), Los Angeles Intl. (LAX) before reaching Moline. 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City Intl.)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Moline, IL (MLI-Quad City 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
Seattle - Tacoma Intl.
Destination airport
Quad City Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$349
Distance
1609 mi

Book with confidence

Seattle to Moline Flights

The cheapest times to fly from Seattle to Moline

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Moline are during the month of August. You can find some of the cheapest flights from Seattle to Moline with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Moline

Sunday is one of the best days to book for cheap flights from Seattle to Moline: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Moline

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Moline in 2026. You can also book with separate airlines for your outbound and return journeys, from $220 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Moline flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Moline airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Moline Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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