MLI - SEA

$248 Find Cheap Flights from Moline to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Moline to Seattle departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Moline to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Moline to Seattle, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$289
Overall average: $313
American Airlines
Wed 2/11Mon 2/16
MLI - SEA • 1 stop
Cheapest one-way
$248
American Airlines
Wed 4/29
MLI - SEA • 1 stop
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 6% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 33% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Moline to Seattle (MLI-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Moline to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Moline to Seattle

Wed, Feb 11 - Mon, Feb 16
American Airlines Logo
7:31 am - 1:08 pmMLI-SEA
7h 37m1 stop
American Airlines Logo
12:59 am - 10:35 amSEA-MLI
7h 36m1 stop
$289American Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 15
American Airlines Logo
5:09 am - 1:06 pmMLI-SEA
9h 57m1 stop
American Airlines Logo
6:15 am - 5:02 pmSEA-MLI
8h 47m1 stop
$324American Airlines
Find Deal
Tue, Dec 9 - Sat, Dec 13
Delta Logo
5:08 pm - 11:58 pmMLI-SEA
8h 50m1 stop
Delta Logo
6:00 am - 4:19 pmSEA-MLI
8h 19m1 stop
$359Delta
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Tue, Dec 9 - Sat, Dec 13
United Airlines Logo
5:40 pm - 10:28 pmMLI-SEA
6h 48m1 stop
United Airlines Logo
7:29 pm - 10:15 amSEA-MLI
12h 46m2 stops
$364United Airlines
Find Deal
Sat, Feb 14 - Wed, Feb 18
American Airlines Logo
12:44 pm - 9:08 pmMLI-SEA
10h 24m1 stop
American Airlines Logo
11:50 am - 11:06 pmSEA-MLI
9h 16m1 stop
$379American Airlines
Find Deal
Tue, Dec 23 - Fri, Jan 2
Multiple Airlines Logo
12:24 pm - 1:51 pmMLI-SEA
27h 27m1 stop
Multiple Airlines Logo
7:48 pm - 6:45 pmSEA-MLI
20h 57m1 stop
$382Multiple Airlines
Find Deal
Tue, Mar 17 - Mon, Mar 23
United Airlines Logo
5:37 pm - 10:45 pmMLI-SEA
7h 08m1 stop
United Airlines Logo
11:59 pm - 2:12 pmSEA-MLI
12h 13m2 stops
$384United Airlines
Find Deal
Wed, Feb 11 - Tue, Feb 17
United Airlines Logo
10:47 am - 7:55 pmMLI-SEA
11h 08m2 stops
United Airlines Logo
11:45 pm - 4:47 pmSEA-MLI
15h 02m2 stops
$389United Airlines
Find Deal
Wed, Feb 11 - Tue, Feb 17
United Airlines Logo
6:30 am - 9:12 pmMLI-SEA
16h 42m3 stops
United Airlines Logo
11:45 pm - 3:17 pmSEA-MLI
13h 32m2 stops
$394United Airlines
Find Deal
Wed, Mar 4 - Mon, Mar 9
American Airlines Logo
3:34 pm - 11:07 pmMLI-SEA
9h 33m1 stop
American Airlines Logo
12:59 am - 10:36 amSEA-MLI
7h 37m1 stop
$397American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Moline to Seattle flights

Get data-powered insights and trends into flights from Moline to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Moline to Seattle?

The average price of all round-trip flights from Moline to Seattle clicked on KAYAK for each day over the last 12 months.

For Moline to Seattle, Sunday is the cheapest day to fly on average and Monday is the most expensive. Flying from Seattle back to Moline, the best deals are generally found on Saturday, with Sunday being the most expensive.

What is the cheapest month to fly from Moline to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Moline to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Moline to Seattle is February, where tickets cost $313 (return) on average. On the other hand, the most expensive months are July and May, where the average cost of round-trip tickets is $597 and $571 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Moline to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Moline to Seattle, you should book around 2 weeks before departure, which saves you about 6% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$248
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Moline to Seattle

When to book flights from Moline to Seattle

Are your dates flexible? Find out the best times to travel from Moline to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Moline to Seattle

  • What is the cheapest flight from Moline to Seattle?

    In the last 3 days, the lowest price for a flight from Moline to Seattle was $248 for a one-way ticket and $289 for a round-trip.

  • Do I need a passport to fly between Moline and Seattle?

    No

  • Which airports will I be using when flying from Moline to Seattle?

    Moline airport is called Moline Quad-City and the only airport in Seattle is Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Moline to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Moline to Seattle?

    Star Alliance, and oneworld are the airline alliances operating flights between Moline and Seattle, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Moline to Seattle, Alaska Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Moline to Seattle are Alaska Airlines and United Airlines. With an average price for the route of $588 and an overall rating of 8.0, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $494 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Moline to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Moline to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Moline to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Moline is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Moline to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Moline with another airline. Booking your flights between Moline and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Moline to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Moline up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Moline to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Moline to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Moline to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11340 reviews
7.0Entertainment
8.5Crew
7.8Comfort
8.1Boarding
7.1Food
Airline reviews

If they loaded the back of the plane first, loading would go faster

8.0 ExcellentChristina, Nov 2025CVG - SEA
Read more Alaska Airlines reviews

If they loaded the back of the plane first, loading would go faster

I liked the free snacks and drink. I liked the onboard entertainment. I did not like the WiFi cutting out in middle of my movie.

The small ej plane didn’t have any entertainment aside from the stuff on the Alaska website that has to be accessed from your own device. But everything else was just great.

Last-minute flight delay in originating flight caused me to miss connection in Seattle by 10 minutes....leading to a 7-hour wait. Communication was poor. Boarding: your staff really need to do a better job of making sure that passengers board with their assigned group. I was in group C, and most of us were waiting but people just kept walking into the line, with the result that all the bin space was taken. You should check boarding group with each passenger and if they are trying to cut in early, tell them to wait.

Flight from PSP delayed ~2hs and missed connection. Terrible service providing acommodations & food (no rides - just the hotel van every 30 min, which you have to call). 12 dollars in food for a 9 hour delay. 30+ minutes to get everything sorted out.

Confusing now Hawaiian and Alaskan have merged, hard to check in - they need to uncomplicated things.

The crew in first class did an amazing job keeping me comfortable, well fed and with plenty to drink. They work hard and deserve to be recognized

I would have liked if the flight existed. To be fair the federal government canceled it. But, since it WAS canceled, I would have liked it if Alaska Airlines had moved a finger to assist me rather then abandoning me with my luggage, unable to check it, for 14 hours in Portland. So federal regulations forbid them from storing my bag? Then at least help me find storage or SOMETHING.

Hate this airline. Uncomfortable seats, no screens, no good food.

Have mounted entertainment for long flights instead of making customers use their own equipment

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

We loved the steward on the plane. He made the night enjoyable

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Everything you need to know for your flight from Moline to Seattle

Information on your arrival and departure airports