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Cheap flights from Seattle to Billund from $476

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 4/27. 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.
KLM Logo
5:35 pm - 11:00 pm
SEA
-
BLL
20h 25m
1 stop
KLM Logo
6:00 am - 4:30 pm
BLL
-
SEA
19h 30m
1 stop
$476KLM
Mon, Apr 27 - Mon, May 4
Delta Logo
6:00 am - 9:35 am
SEA
-
BLL
18h 35m
2 stops
Delta Logo
6:00 am - 4:30 pm
BLL
-
SEA
19h 30m
1 stop
$480Delta
Mon, Apr 27 - Mon, May 4
Delta Logo
6:00 am - 9:35 am
SEA
-
BLL
18h 35m
2 stops
Delta Logo
6:00 am - 5:16 pm
BLL
-
SEA
20h 16m
2 stops
$491Delta
Mon, Apr 27 - Mon, May 4
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
$563Air France
Mon, Jun 29 - Thu, Jul 9
Air France Logo
1:50 pm - 11:00 am
SEA
-
BLL
12h 10m
1 stop
Air France Logo
10:15 am - 4:20 pm
BLL
-
SEA
15h 05m
1 stop
$575Air France
Mon, Jun 29 - Thu, Jul 9
Delta Logo
7:20 am - 9:40 am
SEA
-
BLL
18h 20m
2 stops
Delta Logo
6:00 am - 11:45 am
BLL
-
SEA
14h 45m
1 stop
$599Delta
Wed, Mar 25 - Tue, Mar 31
Delta Logo
7:20 am - 9:40 am
SEA
-
BLL
18h 20m
2 stops
Delta Logo
11:45 am - 10:10 pm
BLL
-
SEA
19h 25m
2 stops
$609Delta
Wed, Mar 25 - Tue, Mar 31
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
United Airlines Logo
7:00 am - 2:10 pm
SEA
-
BLL
22h 10m
2 stops
United Airlines Logo
6:00 am - 12:20 pm
BLL
-
SEA
15h 20m
1 stop
$663United Airlines
Mon, Apr 27 - Mon, May 4
United Airlines Logo
11:59 pm - 10:05 am
SEA
-
BLL
25h 06m
2 stops
United Airlines Logo
6:00 am - 12:20 pm
BLL
-
SEA
15h 20m
1 stop
$664United Airlines
Sun, Apr 26 - Sun, May 3

Air France flights from Seattle to Billund

Our best Air France deals on Seattle to Billund flight tickets
Air France
Jun 29
SEA6:45 pmSeattle/Tacoma Intl
18h 40m
1 stop
BLL10:25 pmBillund
Jul 9
BLL10:15 amBillund
15h 05m
1 stop
SEA4:20 pmSeattle/Tacoma Intl
$563
Air France
Jun 29
SEA1:50 pmSeattle/Tacoma Intl
12h 10m
1 stop
BLL11:00 amBillund
Jul 9
BLL10:15 amBillund
15h 05m
1 stop
SEA4:20 pmSeattle/Tacoma Intl
$575
Air France
Jun 29
SEA6:45 pmSeattle/Tacoma Intl
18h 40m
1 stop
BLL10:25 pmBillund
Jul 9
BLL10:15 amBillund
15h 05m
1 stop
SEA4:20 pmSeattle/Tacoma Intl
$647

United Airlines flights from Seattle to Billund

Our best United Airlines deals on Seattle to Billund flight tickets
United Airlines
Apr 27
SEA7:00 amSeattle/Tacoma Intl
22h 10m
2 stops
BLL2:10 pmBillund
May 4
BLL6:00 amBillund
15h 20m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$663
United Airlines
Apr 26
SEA11:59 pmSeattle/Tacoma Intl
25h 06m
2 stops
BLL10:05 amBillund
May 3
BLL6:00 amBillund
15h 20m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$664
United Airlines
Apr 26
SEA11:59 pmSeattle/Tacoma Intl
25h 06m
2 stops
BLL10:05 amBillund
May 3
BLL6:00 amBillund
26h 59m
2 stops
SEA11:59 pmSeattle/Tacoma Intl
$674

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 16, 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 4/27

5:35 pm-11:00 pm

1 stop20h 25m

Billund

Mon 5/4

6:00 am-4:30 pm

1 stop19h 30m

$476

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 4/27

6:00 am-9:35 am

2 stops18h 35m

Billund

Mon 5/4

6:00 am-4:30 pm

1 stop19h 30m

$480

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 4/27

6:00 am-9:35 am

2 stops18h 35m

Billund

Mon 5/4

6:00 am-5:16 pm

2 stops20h 16m

$491

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

$563
Quickest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/29

1:50 pm-11:00 am

1 stop12h 10m

Billund

Thu 7/9

10:15 am-4:20 pm

1 stop15h 05m

$575

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 3/25

7:20 am-9:40 am

2 stops18h 20m

Billund

Tue 3/31

6:00 am-11:45 am

1 stop14h 45m

$599

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 3/25

7:20 am-9:40 am

2 stops18h 20m

Billund

Tue 3/31

11:45 am-10:10 pm

2 stops19h 25m

$609

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

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 4/27

7:00 am-2:10 pm

2 stops22h 10m

Billund

Mon 5/4

6:00 am-12:20 pm

1 stop15h 20m

$663

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 4/26

11:59 pm-10:05 am

2 stops25h 06m

Billund

Sun 5/3

6:00 am-12:20 pm

1 stop15h 20m

$664

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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

12h 50m

Direct flights

None
The fastest flight from Seattle to Billund takes 12h 50m
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 12h 50m.

  • 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
8,292 reviews
Search Delta flights
LufthansaPriceFrom $597Free CancellationRating
6.8
7,850 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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