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Cheap flights from Seattle to Billund from $509

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 8/23. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Billund

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:50 pm - 5:55 pmSEA  Seattle/Tacoma Intl-BLL Billund
19h 05m1 stop Amsterdam Schiphol
Delta Logo
12:00 pm - 5:43 pmBLL  Billund-SEA Seattle/Tacoma Intl
14h 43m1 stop Paris Charles de Gaulle
$509Delta
Sun, Aug 23 - Thu, Sep 3
Delta Logo
7:15 am - 9:35 amSEA  Seattle/Tacoma Intl-BLL Billund
17h 20m2 stops Chicago O'Hare Intl Amsterdam Schiphol
Delta Logo
6:00 am - 11:37 amBLL  Billund-SEA Seattle/Tacoma Intl
14h 37m1 stop Amsterdam Schiphol
$513Delta
Sat, Aug 22 - Mon, Aug 31
Delta Logo
7:15 am - 9:35 amSEA  Seattle/Tacoma Intl-BLL Billund
17h 20m2 stops Chicago O'Hare Intl Amsterdam Schiphol
Delta Logo
4:15 pm - 11:37 amBLL  Billund-SEA Seattle/Tacoma Intl
28h 22m1 stop Amsterdam Schiphol
$513Delta
Sat, Aug 22 - Sat, Aug 29
Delta Logo
7:15 am - 9:35 amSEA  Seattle/Tacoma Intl-BLL Billund
17h 20m2 stops Chicago O'Hare Intl Amsterdam Schiphol
Delta Logo
6:40 am - 5:34 pmBLL  Billund-SEA Seattle/Tacoma Intl
19h 54m1 stop Paris Charles de Gaulle
$513Delta
Sat, Aug 22 - Sun, Aug 30
Air France Logo
1:50 pm - 10:55 amSEA  Seattle/Tacoma Intl-BLL Billund
12h 05m1 stop Amsterdam Schiphol
Air France Logo
6:00 am - 11:37 amBLL  Billund-SEA Seattle/Tacoma Intl
14h 37m1 stop Amsterdam Schiphol
$566Air France
Sat, Aug 22 - Sat, Aug 29
Air France Logo
1:50 pm - 1:40 pmSEA  Seattle/Tacoma Intl-BLL Billund
14h 50m1 stop Amsterdam Schiphol
Air France Logo
6:00 am - 4:27 pmBLL  Billund-SEA Seattle/Tacoma Intl
19h 27m1 stop Amsterdam Schiphol
$566Air France
Sat, Aug 22 - Sun, Aug 30
Air France Logo
1:50 pm - 10:55 amSEA  Seattle/Tacoma Intl-BLL Billund
12h 05m1 stop Amsterdam Schiphol
Air France Logo
10:15 am - 4:27 pmBLL  Billund-SEA Seattle/Tacoma Intl
15h 12m1 stop Amsterdam Schiphol
$566Air France
Sat, Aug 22 - Mon, Aug 31
Scandinavian Airlines Logo
3:55 pm - 6:40 pmSEA  Seattle/Tacoma Intl-BLL Billund
17h 45m2 stops Kastrup Copenhagen Oslo Gardermoen
Scandinavian Airlines Logo
8:00 pm - 1:45 pmBLL  Billund-SEA Seattle/Tacoma Intl
50h 45m2 stops Stockholm Arlanda Kastrup Copenhagen
$568Scandinavian Airlines
Sun, Sep 13 - Sun, Sep 20
Scandinavian Airlines Logo
3:55 pm - 10:25 amSEA  Seattle/Tacoma Intl-BLL Billund
33h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
8:00 pm - 1:45 pmBLL  Billund-SEA Seattle/Tacoma Intl
50h 45m2 stops Stockholm Arlanda Kastrup Copenhagen
$571Scandinavian Airlines
Sun, Sep 13 - Sun, Sep 20
Multiple Airlines Logo
5:45 pm - 11:00 pmSEA  Seattle/Tacoma Intl-BLL Billund
20h 15m1 stop Amsterdam Schiphol
Multiple Airlines Logo
6:00 am - 11:47 amBLL  Billund-SEA Seattle/Tacoma Intl
14h 47m1 stop Amsterdam Schiphol
$652Multiple Airlines
Sun, Sep 13 - Sun, Sep 20

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Scandinavian Airlines flights from Seattle to Billund

Our best Scandinavian Airlines deals on Seattle to Billund flight tickets
Scandinavian Airlines
Sep 13
SEA3:55 pmSeattle/Tacoma Intl
33h 30m
1 stop
BLL10:25 amBillund
Sep 20
BLL8:00 pmBillund
50h 45m
2 stops
SEA1:45 pmSeattle/Tacoma Intl
$571
Scandinavian Airlines
Dec 4
SEA2:30 pmSeattle/Tacoma Intl
34h 55m
2 stops
BLL10:25 amBillund
Dec 8
BLL9:15 pmBillund
31h 49m
2 stops
SEA8:04 pmSeattle/Tacoma Intl
$711
Scandinavian Airlines
Jan 31
SEA2:30 pmSeattle/Tacoma Intl
39h 30m
2 stops
BLL3:00 pmBillund
Feb 4
BLL6:15 amBillund
21h 50m
2 stops
SEA7:05 pmSeattle/Tacoma Intl
$743

Delta flights from Seattle to Billund

Our best Delta deals on Seattle to Billund flight tickets
Delta
Aug 23
SEA1:50 pmSeattle/Tacoma Intl
19h 05m
1 stop
BLL5:55 pmBillund
Sep 3
BLL12:00 pmBillund
14h 43m
1 stop
SEA5:43 pmSeattle/Tacoma Intl
$509
Delta
Aug 22
SEA7:15 amSeattle/Tacoma Intl
17h 20m
2 stops
BLL9:35 amBillund
Aug 29
BLL4:15 pmBillund
28h 22m
1 stop
SEA11:37 amSeattle/Tacoma Intl
$513
Delta
Aug 22
SEA7:15 amSeattle/Tacoma Intl
17h 20m
2 stops
BLL9:35 amBillund
Aug 31
BLL4:00 pmBillund
37h 20m
2 stops
SEA8:20 pmSeattle/Tacoma Intl
$523

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 August 7, 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 Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sun 8/23

1:50 pm-5:55 pm

1 stop19h 05m

Billund

Thu 9/3

12:00 pm-5:43 pm

1 stop14h 43m

$509

SeattleBillund

SEA Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sat 8/22

7:15 am-9:35 am

2 stops17h 20m

Billund

Mon 8/31

6:00 am-11:37 am

1 stop14h 37m

$513

SeattleBillund

SEA Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sat 8/22

7:15 am-9:35 am

2 stops17h 20m

Billund

Sat 8/29

4:15 pm-11:37 am

1 stop28h 22m

$513

SeattleBillund

SEA Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sat 8/22

7:15 am-9:35 am

2 stops17h 20m

Billund

Sun 8/30

6:40 am-5:34 pm

1 stop19h 54m

$513
Quickest round-trip

SeattleBillund

SEA Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sat 8/22

1:50 pm-10:55 am

1 stop12h 05m

Billund

Sat 8/29

6:00 am-11:37 am

1 stop14h 37m

$566

SeattleBillund

SEA Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sat 8/22

1:50 pm-1:40 pm

1 stop14h 50m

Billund

Sun 8/30

6:00 am-4:27 pm

1 stop19h 27m

$566

SeattleBillund

SEA Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sat 8/22

1:50 pm-10:55 am

1 stop12h 05m

Billund

Mon 8/31

10:15 am-4:27 pm

1 stop15h 12m

$566

SeattleBillund

SEA Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sun 9/13

3:55 pm-6:40 pm

2 stops17h 45m

Billund

Sun 9/20

8:00 pm-1:45 pm

2 stops50h 45m

$568

SeattleBillund

SEA Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sun 9/13

3:55 pm-10:25 am

1 stop33h 30m

Billund

Sun 9/20

8:00 pm-1:45 pm

2 stops50h 45m

$571

SeattleBillund

SEA Seattle/Tacoma Intl - BLL Billund

SEABLL

Seattle/Tacoma Intl

Sun 9/13

5:45 pm-11:00 pm

1 stop20h 15m

Billund

Sun 9/20

6:00 am-11:47 am

1 stop14h 47m

$652

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 typical price of a round-trip flight between Seattle and Billund?

Prices are currently low for flights on this route.

Typical prices usually range from $640 to $1,047.
The lowest price recently found on this route was $509.

What is the cheapest month to fly to Billund?

In general, April 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 $0. If you aren’t able to travel to Billund during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $473.

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

17h 20m

Direct flights

None
The fastest flight from Seattle to Billund takes 17h 20m
There are no direct flights from Seattle to Billund. There are no popular flight routes from Seattle to Billund.
Search flight deals

Frequently asked questions about flying from Seattle to Billund

  • 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 17h 20m.

  • 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
7.8
8,496 reviews
Search Delta flights
Air FrancePriceFrom $500Free CancellationRating
7.5
1,637 reviews
Search Air France flights

Traveling to a place near Billund?

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