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Cheap flights from Seattle to Billund from $486

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Billund departing on 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Seattle to Billund

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:35 pm - 11:00 pm
SEA
-
BLL
20h 25m
1 stop
Multiple Airlines Logo
6:00 am - 11:45 am
BLL
-
SEA
14h 45m
1 stop
$486Multiple Airlines
Mon, Apr 20 - Mon, Apr 27
Delta Logo
1:45 pm - 5:55 pm
SEA
-
BLL
19h 10m
1 stop
Delta Logo
11:45 am - 9:50 pm
BLL
-
SEA
19h 05m
2 stops
$496Delta
Mon, Apr 20 - Mon, Apr 27
Delta Logo
7:15 am - 11:00 am
SEA
-
BLL
18h 45m
2 stops
Delta Logo
11:45 am - 9:50 pm
BLL
-
SEA
19h 05m
2 stops
$500Delta
Mon, Apr 20 - Mon, Apr 27
Icelandair Logo
7:00 pm - 9:35 pm
SEA
-
BLL
17h 35m
1 stop
Icelandair Logo
10:35 pm - 11:45 am
BLL
-
SEA
22h 10m
1 stop
$591Icelandair
Sun, May 24 - Mon, Jun 8
Icelandair Logo
3:40 pm - 9:35 pm
SEA
-
BLL
20h 55m
1 stop
Icelandair Logo
10:35 pm - 11:45 am
BLL
-
SEA
22h 10m
1 stop
$593Icelandair
Sun, May 24 - Mon, Jun 8
Scandinavian Airlines Logo
3:55 pm - 6:40 pm
SEA
-
BLL
17h 45m
2 stops
Scandinavian Airlines Logo
7:15 pm - 1:45 pm
BLL
-
SEA
27h 30m
2 stops
$638Scandinavian Airlines
Sun, May 24 - Mon, Jun 8
Scandinavian Airlines Logo
3:55 pm - 10:30 am
SEA
-
BLL
33h 35m
1 stop
Scandinavian Airlines Logo
11:00 am - 1:45 pm
BLL
-
SEA
11h 45m
1 stop
$640Scandinavian Airlines
Sun, May 24 - Tue, Jun 9
Multiple Airlines Logo
7:00 pm - 9:35 pm
SEA
-
BLL
17h 35m
1 stop
Multiple Airlines Logo
10:40 am - 10:58 pm
BLL
-
SEA
21h 18m
2 stops
$642Multiple Airlines
Sun, May 24 - Tue, Jun 9
Scandinavian Airlines Logo
3:55 pm - 6:40 pm
SEA
-
BLL
17h 45m
2 stops
Scandinavian Airlines Logo
3:40 pm - 1:45 pm
BLL
-
SEA
31h 05m
1 stop
$645Scandinavian Airlines
Sun, May 24 - Mon, Jun 8
Air France Logo
6:45 pm - 10:25 pm
SEA
-
BLL
18h 40m
1 stop
Air France Logo
10:15 am - 4:20 pm
BLL
-
SEA
15h 05m
1 stop
$647Air France
Mon, Jun 29 - Thu, Jul 9

Delta flights from Seattle to Billund

Our best Delta deals on Seattle to Billund flight tickets
Delta
Apr 20
SEA1:45 pmSeattle/Tacoma Intl
19h 10m
1 stop
BLL5:55 pmBillund
Apr 27
BLL11:45 amBillund
19h 05m
2 stops
SEA9:50 pmSeattle/Tacoma Intl
$496
Delta
Apr 20
SEA7:15 amSeattle/Tacoma Intl
18h 45m
2 stops
BLL11:00 amBillund
Apr 27
BLL11:45 amBillund
19h 05m
2 stops
SEA9:50 pmSeattle/Tacoma Intl
$500
Delta
May 25
SEA6:00 amSeattle/Tacoma Intl
20h 00m
2 stops
BLL11:00 amBillund
Jun 9
BLL6:00 amBillund
14h 37m
1 stop
SEA11:37 amSeattle/Tacoma Intl
$691

KLM flights from Seattle to Billund

Our best KLM deals on Seattle to Billund flight tickets
KLM
May 23
SEA5:40 pmSeattle/Tacoma Intl
30h 55m
1 stop
BLL9:35 amBillund
Jun 9
BLL6:45 pmBillund
30h 39m
1 stop
SEA4:24 pmSeattle/Tacoma Intl
$687
KLM
Apr 24
SEA1:45 pmSeattle/Tacoma Intl
12h 10m
1 stop
BLL10:55 amBillund
May 1
BLL6:45 pmBillund
26h 00m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$702
KLM
Mar 22
SEA1:30 pmSeattle/Tacoma Intl
16h 20m
2 stops
BLL1:50 pmBillund
Mar 29
BLL6:45 pmBillund
26h 00m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$1,179

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Billund that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 11, 2026.
Use the filters below to find and compare flights from Seattle to Billund that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 4/20

5:35 pm-11:00 pm

1 stop20h 25m

Billund

Mon 4/27

6:00 am-11:45 am

1 stop14h 45m

$486

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 4/20

1:45 pm-5:55 pm

1 stop19h 10m

Billund

Mon 4/27

11:45 am-9:50 pm

2 stops19h 05m

$496

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 4/20

7:15 am-11:00 am

2 stops18h 45m

Billund

Mon 4/27

11:45 am-9:50 pm

2 stops19h 05m

$500

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 5/24

7:00 pm-9:35 pm

1 stop17h 35m

Billund

Mon 6/8

10:35 pm-11:45 am

1 stop22h 10m

$591

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 5/24

3:40 pm-9:35 pm

1 stop20h 55m

Billund

Mon 6/8

10:35 pm-11:45 am

1 stop22h 10m

$593

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 5/24

3:55 pm-6:40 pm

2 stops17h 45m

Billund

Mon 6/8

7:15 pm-1:45 pm

2 stops27h 30m

$638

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 5/24

3:55 pm-10:30 am

1 stop33h 35m

Billund

Tue 6/9

11:00 am-1:45 pm

1 stop11h 45m

$640

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 5/24

7:00 pm-9:35 pm

1 stop17h 35m

Billund

Tue 6/9

10:40 am-10:58 pm

2 stops21h 18m

$642

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 5/24

3:55 pm-6:40 pm

2 stops17h 45m

Billund

Mon 6/8

3:40 pm-1:45 pm

1 stop31h 05m

$645
Quickest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/29

6:45 pm-10:25 pm

1 stop18h 40m

Billund

Thu 7/9

10:15 am-4:20 pm

1 stop15h 05m

$647

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Billund from

How to get the cheapest flight ticket from Seattle to Billund

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 Billund?

In general, February is the cheapest month to fly from Seattle to Billund. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $473. If you aren’t able to travel to Billund during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $597.

When to book flights from Seattle to Billund

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Billund according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Billund (SEA to BLL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Billund

Fastest flight time

15h 15m

Direct flights

None
The fastest flight from Seattle to Billund takes 15h 15m
There are no direct flights from Seattle to Billund. There are no popular flight routes from Seattle to Billund.
Search flight deals

  • How far is Seattle/Tacoma Intl to Billund by plane?

    The distance between Seattle/Tacoma Intl and Billund is about 4761.2 mi. By plane, this route typically takes 15h 15m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Billund Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Billund Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Billund Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Billund 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 Billund Airport.

  • What documentation or ID do you need to fly to Billund Airport?

    The travel and health documents required for your trip to Billund Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Billund Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Billund?

Best airlines flying from Seattle to Billund

Compare and see reviews for airlines that fly from Seattle to Billund with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $421Free CancellationRating
7.9
8,276 reviews
Search Delta flights
LufthansaPriceFrom $597Free CancellationRating
6.8
7,840 reviews
Search Lufthansa flights

Traveling to a place near Billund?

Book flights to Billund if you plan to visit one of these locations
Vejle
Ribe
Kolding
Horsens
Middelfart

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Billund?

Finding the right flight to Billund from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Billund quick and easy, saving you time and money.

Can I find flights from Seattle to Billund with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Billund from Seattle with this policy.

How can momondo help me find flights from Seattle to Billund?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Billund from Seattle.

I’m not ready to book a flight from Seattle to Billund right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Billund from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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