$351+ Cheap flights from Seattle (SEA) to Billund (BLL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Nov 13 — Nov 201
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seattle to Billund with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Billund
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to BillundExplore the most affordable flight options available from Seattle to Billund. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2026.
Explore the most affordable flight options available from Seattle to Billund. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2026.
This Delta deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:20 pm -
1 stop14h 05m
Mon 11/97:05 am -
1 stop17h 09m
Deal found 10/13![Delta logo]()
$598
This Air France deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:25 pm -
1 stop18h 35m
Mon 11/97:05 am -
1 stop17h 09m
Deal found 10/10![Air France logo]()
$610
This KLM deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:35 pm -
1 stop14h 10m
Thu 12/36:00 am -
1 stop14h 50m
Deal found 10/12![KLM logo]()
$629
This Delta deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:49 am -
2 stops16h 56m
Thu 12/310:25 am -
2 stops22h 28m
Deal found 10/12![Delta logo]()
$643
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/147:20 am -
2 stops17h 20m
Mon 12/217:05 am -
1 stop17h 10m
Deal found 10/11![Delta logo]()
$702
Best flights from Seattle to BillundDiscover carefully curated flight deals from Seattle to Billund that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
Discover carefully curated flight deals from Seattle to Billund that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
This Delta deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:20 pm -
1 stop14h 05m
Mon 11/97:05 am -
1 stop17h 09m
Deal found 10/13![Delta logo]()
$598
This KLM deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:25 pm -
1 stop21h 20m
Wed 12/26:00 am -
1 stop14h 50m
Deal found 10/11![Multiple Airlines logo]()
$598
This Air France deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:25 pm -
1 stop18h 35m
Mon 11/97:05 am -
1 stop17h 09m
Deal found 10/10![Air France logo]()
$610
This Delta deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/223:30 pm -
1 stop13h 55m
Mon 3/110:25 am -
2 stops20h 37m
Deal found 10/13![Delta logo]()
$615
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/179:30 am -
2 stops17h 55m
Wed 3/316:40 am -
1 stop13h 35m
Deal found 10/11![Delta logo]()
$621
Last-minute flights from Seattle to BillundDiscover last-minute flight deals from Seattle to Billund. Data last updated October 14, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Billund. Data last updated October 14, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:20 pm -
1 stop14h 05m
Mon 11/97:05 am -
1 stop17h 09m
Deal found 10/13![Delta logo]()
$598
This Air France deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:25 pm -
1 stop18h 35m
Mon 11/97:05 am -
1 stop17h 09m
Deal found 10/10![Air France logo]()
$610
This KLM deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:35 pm -
1 stop14h 10m
Thu 12/36:00 am -
1 stop14h 50m
Deal found 10/12![KLM logo]()
$629
This Delta deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:49 am -
2 stops16h 56m
Thu 12/310:25 am -
2 stops22h 28m
Deal found 10/12![Delta logo]()
$643
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:05 am -
2 stops28h 15m
Thu 12/36:35 am -
1 stop14h 25m
Deal found 10/12![United Airlines logo]()
$758
One-way flights from Seattle to BillundSearch for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
Search for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:10 pm -
2 stops31h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$351
This Lufthansa deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:50 pm -
1 stop24h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Lufthansa logo]()
$520
Find flight deals from Seattle to Billund
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Billund (BLL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $598 (Delta) |
Popular in | December |
Cheapest in | February |
Average price | $513 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated October 14, 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
Cheapest round-trip
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sun 10/25
7:10 pm-10:25 am
2 stops31h 15m
Billund
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$351
Quickest round-trip
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sun 10/25
2:50 pm-11:25 pm
1 stop24h 35m
Billund
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$520
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Mon 10/26
4:20 pm-2:25 pm
1 stop14h 05m
Billund
Mon 11/9
7:05 am-3:14 pm
1 stop17h 09m
$598
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Wed 11/25
3:25 pm-9:45 pm
1 stop21h 20m
Billund
Wed 12/2
6:00 am-11:50 am
1 stop14h 50m
$598
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Mon 10/26
3:25 pm-6:00 pm
1 stop18h 35m
Billund
Mon 11/9
7:05 am-3:14 pm
1 stop17h 09m
$610
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Mon 2/22
3:30 pm-2:25 pm
1 stop13h 55m
Billund
Mon 3/1
10:25 am-10:02 pm
2 stops20h 37m
$615
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Wed 3/17
9:30 am-11:25 am
2 stops17h 55m
Billund
Wed 3/31
6:40 am-11:15 am
1 stop13h 35m
$621
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Seattle-Billund flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Billund flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Billund flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Billund flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Billund flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Billund
Have a flexible travel schedule? Discover the best time to fly to Billund from Seattle with our price prediction graph.
SEA-BLL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Billund
Get insights into the airlines that provide service to Billund. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Billund. Reviews last updated October 14, 2026.
Peruse reviews from past customers who have flown with Delta and Air France from Seattle to Billund to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Seattle to Billund. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Billund?
Book flights to Billund if you plan to visit one of these locationsVejle
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Seattle
Popular flights
Alternative routes for Seattle to Billund
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Billund by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Billund by cabin class
Find flights from Seattle to Billund, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Billund flights
Browse other Seattle and Billund flight options. Last updated on October 14, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on October 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Seattle to Billund
Discover the top 2 airlines that operate flights from Seattle to Billund. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$473 | Average$677 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$500 | Average$698 | FlexibilityNo cancel fee | On-time77% |