SEA - BLL

$492 Find Cheap Flights from Seattle to Billund

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Billund departing on 1/24. 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 Billund

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

Cheapest round-trip
$492
Overall average: $873
Scandinavian Airlines
Sat 1/24Sat 1/31
SEA - BLL • 2 stops
Cheapest one-way
Multiple Airlines
Thu 12/11
SEA - BLL • multi-stop
Top airlines
Scandinavian Airlines
Cheapest • from $492 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 15% 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 Billund!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Billund (SEA-BLL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Billund 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 Seattle to Billund

Sat, Jan 24 - Sat, Jan 31
Scandinavian Airlines Logo
11:30 am - 2:55 pm
SEA
-
BLL
18h 25m2 stops
Scandinavian Airlines Logo
9:55 am - 8:46 pm
BLL
-
SEA
19h 51m2 stops
$492Scandinavian Airlines
Sat, Jan 24 - Sat, Jan 31
Lufthansa Logo
2:00 pm - 1:20 pm
SEA
-
BLL
14h 20m1 stop
Lufthansa Logo
6:45 am - 12:10 pm
BLL
-
SEA
14h 25m1 stop
$494Lufthansa
Sat, Jan 24 - Sat, Jan 31
Scandinavian Airlines Logo
11:30 am - 2:55 pm
SEA
-
BLL
18h 25m2 stops
Scandinavian Airlines Logo
9:55 am - 8:46 pm
BLL
-
SEA
19h 51m2 stops
$514Scandinavian Airlines
Fri, Feb 20 - Sun, Mar 1
Multiple Airlines Logo
2:15 pm - 11:00 pm
SEA
-
BLL
23h 45m1 stop
Multiple Airlines Logo
10:20 am - 11:35 am
BLL
-
SEA
34h 15m1 stop
$522Multiple Airlines
Sat, Jan 24 - Sat, Jan 31
KLM Logo
7:10 am - 9:35 am
SEA
-
BLL
17h 25m2 stops
KLM Logo
6:00 am - 11:50 am
BLL
-
SEA
14h 50m1 stop
$524KLM
Fri, Feb 20 - Sun, Mar 1
Multiple Airlines Logo
2:15 pm - 3:30 pm
SEA
-
BLL
16h 15m1 stop
Multiple Airlines Logo
6:00 am - 2:44 pm
BLL
-
SEA
17h 44m2 stops
$528Multiple Airlines
Sat, Jan 24 - Sat, Jan 31
KLM Logo
3:10 pm - 10:45 pm
SEA
-
BLL
22h 35m1 stop
KLM Logo
6:00 am - 11:50 am
BLL
-
SEA
14h 50m1 stop
$529KLM
Sat, Jan 24 - Sat, Jan 31
KLM Logo
7:10 am - 9:35 am
SEA
-
BLL
17h 25m2 stops
KLM Logo
6:00 am - 11:50 am
BLL
-
SEA
14h 50m1 stop
$533KLM
Fri, Feb 20 - Sun, Mar 1
United Airlines Logo
7:00 am - 1:20 pm
SEA
-
BLL
21h 20m2 stops
United Airlines Logo
6:30 am - 12:59 am
BLL
-
SEA
27h 29m2 stops
$541United Airlines
Sat, Jan 24 - Sat, Jan 31
United Airlines Logo
10:58 am - 1:20 pm
SEA
-
BLL
17h 22m2 stops
United Airlines Logo
6:45 am - 9:12 pm
BLL
-
SEA
23h 27m3 stops
$639United Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Billund flights

Get data-powered insights and trends into flights from Seattle to Billund 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 Seattle to Billund?

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

Your flight ticket price will generally be cheaper if you fly to Billund on a Friday and more expensive on a Wednesday. On your return trip to Seattle, you should consider flying back on a Monday, and avoid Thursdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Billund, 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 Seattle to Billund is March, where tickets cost $590 (return) on average. On the other hand, the most expensive months are January and May, where the average cost of round-trip tickets is $873 and $809 respectively.

Good to know

Low seasonJanuary
Cheapest flight$492
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Seattle to Billund

When to book flights from Seattle to Billund

Are your dates flexible? Find out the best times to travel from Seattle to Billund 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 Seattle to Billund

  • What is the cheapest flight from Seattle to Billund?

    In the last 3 days, the lowest price for a flight from Seattle to Billund was $492 for a round-trip ticket.

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

    Yes, you’ll need a passport to travel to Billund from Seattle.

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

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

  • Which airline alliances offer flights from Seattle to Billund?

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

  • Which is the best airline for flights from Seattle to Billund, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Seattle to Billund are Delta and KLM. With an average price for the route of $757 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $617 and an overall rating of 7.7.

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

    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 Seattle to Billund.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billund from Seattle 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 Seattle to Billund?

    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 Billund with an airline and back to Seattle with another airline. Booking your flights between Seattle and BLL 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 Seattle to Billund?

    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 Billund from Seattle 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 Seattle to Billund

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Billund. 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 Seattle to Billund? 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.
7.9
DeltaOverall score based on 8007 reviews
8.1Boarding
7.9Comfort
7.3Food
8.5Crew
7.9Entertainment
Airline reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

6.0 GoodJeff, Dec 2025
JFK - MIA
Read more Delta reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

Terrible last row seats many seats available but no offer to move to better seat

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

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

Information on your arrival and departure airports