BLL - SEA

$647 Find Cheap Flights from Billund to Seattle

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billund to Seattle departing on 8/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billund to Seattle, 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 Billund to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flight Deals from Billund to Seattle (BLL-SEA)

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

Recent round-trip flight deals from Billund to Seattle

KAYAK's recommended round-trip deals from the most popular airlines that fly from Billund to Seattle.
Discover the best prices for you by selecting your travel dates on KAYAK.
Logo
7:25 am - 6:20 pmBLL-SEA
19h 55m2 stops
Logo
7:15 am - 8:10 pmSEA-BLL
27h 55m2 stops
$647
Find Deal
Fri, Aug 8 - Sat, Sep 13
Logo
7:25 am - 6:20 pmBLL-SEA
19h 55m2 stops
Logo
7:15 am - 8:10 pmSEA-BLL
27h 55m2 stops
$648
Find Deal
Fri, Aug 8 - Sat, Sep 13
Turkish Airlines Logo
7:05 pm - 5:15 pmBLL-SEA
31h 10m1 stop
Turkish Airlines Logo
7:10 pm - 6:10 pmSEA-BLL
38h 00m1 stop
$708Turkish Airlines
Find Deal
Fri, Aug 8 - Sat, Sep 13
Turkish Airlines Logo
7:05 pm - 5:15 pmBLL-SEA
31h 10m1 stop
Turkish Airlines Logo
7:10 pm - 6:10 pmSEA-BLL
38h 00m1 stop
$709Turkish Airlines
Find Deal
Fri, Aug 8 - Sat, Sep 13
Lufthansa Logo
6:00 am - 11:55 amBLL-SEA
14h 55m1 stop
Lufthansa Logo
7:00 am - 12:25 pmSEA-BLL
20h 25m2 stops
$755Lufthansa
Find Deal
Fri, Aug 8 - Sat, Sep 13
Lufthansa Logo
6:00 am - 11:55 amBLL-SEA
14h 55m1 stop
Lufthansa Logo
7:00 am - 12:25 pmSEA-BLL
20h 25m2 stops
$759Lufthansa
Find Deal
Fri, Aug 8 - Sat, Sep 13
Logo
10:35 pm - 6:38 pmBLL-SEA
29h 03m2 stops
Logo
3:45 pm - 11:20 amSEA-BLL
34h 35m3 stops
$1,069
Find Deal
Fri, Aug 8 - Sat, Sep 13
Logo
4:40 pm - 8:28 pmBLL-SEA
36h 48m3 stops
Logo
3:45 pm - 11:20 amSEA-BLL
34h 35m3 stops
$1,078
Find Deal
Fri, Aug 8 - Sat, Sep 13
Logo
10:35 pm - 8:28 pmBLL-SEA
30h 53m2 stops
Logo
3:45 pm - 11:20 amSEA-BLL
34h 35m3 stops
$1,126
Find Deal
Fri, Aug 8 - Sat, Sep 13
Logo
4:40 pm - 6:38 pmBLL-SEA
34h 58m3 stops
Logo
3:45 pm - 11:20 amSEA-BLL
34h 35m3 stops
$1,134
Find Deal
Fri, Aug 8 - Sat, Sep 13
Useful Info

KAYAK's insights & trends for Billund to Seattle flights

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

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

If you are looking for a flight deal from Billund to Seattle, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Seattle, Friday is the cheapest day to fly and Wednesday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billund to Seattle, 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 Billund to Seattle is January, where tickets cost $495 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $952 and $681 respectively.

How far in advance should I book a flight from Billund to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Billund to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Billund to Seattle, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Find deals

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$647
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 50% increase in price.
Flight from Billund to Seattle

When to book flights from Billund to Seattle

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

  • What is the cheapest flight from Billund to Seattle?

    In the last 3 days, the lowest price for a flight from Billund to Seattle was $647 for a round-trip ticket.

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

    Yes

  • Which airports will I be using when flying from Billund to Seattle?

    Billund airport is called Billund and the only airport in Seattle is Seattle/Tacoma Intl.

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

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

  • Which airline alliances offer flights from Billund to Seattle?

    Star Alliance is the only airline alliance operating flights between Billund and Seattle.

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

    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 Billund to Seattle.

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

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

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

    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 Seattle from Billund up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Billund to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Billund to Seattle. 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 Billund to Seattle? 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.
6.7
LufthansaOverall score based on 7044 reviews
6.4Entertainment
6.7Comfort
6.9Boarding
7.5Crew
6.2Food
Airline reviews

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

10.0 ExcellentAnonymous, Apr 2025FCO - SFO
Read more Lufthansa reviews

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

I like the service and the efficiency. I am lactose intolerant and the lactose intolerant meal in business class was not astounding. Also, the business class fully reclining seats are not that comfortable.

Food was great but they didn't clear my meal tray for 3 hours. You'd think they could check though the cabin now and then.

Upon arriving at IAH, it was informed that the luggage had not arrived. Still waiting to hear back when it will be delivered.

I wasn’t allowed to board with my children. I was charged outrageous costs for basic carry on size luggage. The entertainment screens were outdated and not user friendly.

I was very happy with everything, thank you for the smooth flight ✈️

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

I enjoyed my flight back with Lufthansa because the food was good, and the flight attendants were nice and helped you when you asked a question. The flight attendants always came around and asked if you needed anything which I liked a lot.

Entertainment system is old. Food can be tastier Need to provide toothbrush and toothpaste at least when asked.

The flight was cancelled due to tech problem with the plane

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

Information on your arrival and departure airports

Seattle (SEA)
Billund (BLL)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.