Cheap flights from Seattle to Duluth from $213
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Duluth departing on 7/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Delta flights from Seattle to Duluth
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United Airlines flights from Seattle to Duluth
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How to get the cheapest flight ticket from Seattle to Duluth
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Duluth?
The cheapest month to fly to Duluth from Seattle is in November. Flight prices, which tend to average around $129, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Duluth from Seattle during March instead. Flights to Duluth in March, while not as cheap as those in November, still average around $295.
What is the cheapest day to depart on your flight to Duluth?
The cheapest day to depart from Seattle to Duluth is on a Wednesday when prices can be found for as low as $438. On the other hand, Friday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $698.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Duluth Intl?
United Airlines and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Duluth Intl
What airlines fly to Duluth?
Delta, Sun Country Air and United Airlines are the top three most popular airlines that fly to Duluth from Seattle according to our data. Delta is the first choice among our users, with 81% of people opting to fly with this airline when traveling to Duluth. Keep in mind that there are 3 different airlines that fly to Duluth on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Duluth
Cheap Seattle to Duluth (SEA to DLH) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Duluth
How far is Seattle/Tacoma Intl to Duluth Intl by plane?
A flight from Seattle/Tacoma Intl to Duluth Intl will travel around 1410.5 mi. 7h 16m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Duluth Intl Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Duluth Intl Airport refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Duluth Intl Airport?
There are 3 operators available for flights from Seattle/Tacoma Intl Airport to Duluth Intl Airport as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Duluth Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Duluth Intl Airport.
What documentation or ID do you need to fly to Duluth Intl Airport?
The necessary travel and health documents for your Duluth Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Duluth?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Duluth is Delta (81% of total bookings). The next most popular airlines are Sun Country Air (9%) and United Airlines (9%).
Best airlines flying from Seattle to Duluth
Compare and see reviews for airlines that fly from Seattle to Duluth with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $148 | Free Cancellation | Rating 6.9 345 reviews | |||
| PriceFrom $258 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $318 | Free Cancellation | Rating 7.4 8,790 reviews |
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Why should I use momondo to find a flight deal from Seattle to Duluth?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Duluth. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Seattle to Duluth with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Duluth flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Duluth?
Once all potential Seattle to Duluth flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Seattle to Duluth right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Seattle to Duluth flights. All you need is a valid email address and we will do the rest; it is that quick and easy.