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$654+ Cheap flights from Billund (BLL) to San Diego (SAN)

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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Billund to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Billund (BLL) to San Diego (SAN). 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 September 11, 2025.

Round-trip from

$654
(British Airways)

Popular in

July

Cheapest in

January

Average price

$688
From Billund to San Diego
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Billund to San Diego

Cheapest flights from Billund to San Diego
Explore the most affordable flight options available from Billund to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Ticket deal was found by Cheapflights users on 9/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:00 amBLL - SAN
1 stop15h 00mAir France
Tue 9/301:55 pmSAN - BLL
1 stop14h 35mAir France
Deal found 9/10$695
This Ticket deal was found by Cheapflights users on 9/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:00 amBLL - SAN
1 stop15h 00mKLM
Tue 9/301:25 pmSAN - BLL
2 stops15h 05mKLM
Deal found 9/10$708
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2511:55 amBLL - SAN
2 stops19h 34mDelta
Tue 9/307:45 amSAN - BLL
2 stops18h 25mDelta
Deal found 9/10$724
This Travelis deal was found by Cheapflights users on 9/11. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:00 amBLL - SAN
2 stops22h 52mLufthansa
Tue 9/306:48 amSAN - BLL
2 stops22h 12mLufthansa
Deal found 9/11$769
This Flysmarter deal was found by Cheapflights users on 9/10. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:15 pmBLL - SAN
3 stops29h 12mBritish Airways
Tue 9/3011:30 amSAN - BLL
2 stops19h 50mBritish Airways
Deal found 9/10$1,620

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billund to San Diego 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Billund to San Diego that are best for you.

Fly from

Billund

Fly to

San Diego

Route

Depart

Return

Price

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Fri 2/20

8:50 pm-7:03 pm

2 stops31h 13m

San Diego

Tue 2/24

6:00 pm-12:10 pm

1 stop33h 10m

$654

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Thu 9/25

6:00 am-12:00 pm

1 stop15h 00m

San Diego

Tue 9/30

1:55 pm-1:30 pm

1 stop14h 35m

$695

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Thu 9/25

11:55 am-10:29 pm

2 stops19h 34m

San Diego

Tue 9/30

7:45 am-11:10 am

2 stops18h 25m

$724

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Thu 9/25

6:00 am-7:52 pm

2 stops22h 52m

San Diego

Tue 9/30

6:48 am-2:00 pm

2 stops22h 12m

$769

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Fri 2/20

6:40 pm-12:05 pm

1 stop26h 25m

San Diego

Tue 2/24

2:00 pm-1:50 pm

1 stop14h 50m

$797

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Thu 9/25

6:00 am-3:25 pm

2 stops18h 25m

San Diego

Tue 9/30

1:55 pm-9:35 am

1 stop34h 40m

$799

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Thu 9/25

4:15 pm-12:27 pm

3 stops29h 12m

San Diego

Tue 9/30

11:30 am-4:20 pm

2 stops19h 50m

$1,620

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Billund to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Billund with our price prediction graph.
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.

Cheapflights Insights

Everything you need to know about your flight from Billund to San Diego

How far ahead should I book a flight from Billund to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Billund to San Diego. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Billund to San Diego, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Billund to San Diego?

Currently, August is the cheapest month in which you can book a flight from Billund to San Diego (average of $286). Flying from Billund to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Billund to San Diego?

Related info for your journey

Find useful and relevant information for your journey from Billund to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Billund to San Diego?

    There are many flights that can get you from Billund to San Diego in 15h. Fly via British Airways or Air France to get the fastest option. There are 5553 mi between Billund and San Diego. This flight may include one or multiple stops.

  • Can I find deals for flights from Billund to San Diego that include hotel bookings?

    Yes. In addition to deals on Billund to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billund to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billund to San Diego.

  • Can I find deals for business class flights from Billund to San Diego?

    Yes. Cheapflights offers flight deals from Billund to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Billund to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Billund to San Diego (average of $286). Flying from Billund to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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