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$690+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — SAN
janv. 11 — janv. 181
dim. 1/11
dim. 1/18
1 adult, Economy
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Cheap flight deals from Billund to San Diego

Best flights from Billund to San Diego
Discover carefully curated flight deals from Billund to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated décembre 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/9. 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.
jeu. 4/235:55 amBLL - SAN
2 stops23h 02mUnited Airlines
lun. 4/276:25 amSAN - BLL
2 stops22h 45mUnited Airlines
Deal found 12/9$690
This British Airways deal was found by Cheapflights users on 12/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/2312:50 pmBLL - SAN
1 stop35h 05mBritish Airways
lun. 4/277:40 pmSAN - BLL
1 stop30h 35mBritish Airways
Deal found 12/9$847

Find 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 décembre 12, 2025.

Round-trip from

$690
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$896
From Billund to San Diego
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 décembre 12, 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

jeu. 4/23

5:55 am-7:57 pm

2 stops23h 02m

San Diego

lun. 4/27

6:25 am-2:10 pm

2 stops22h 45m

$690

BillundSan Diego

BLL - SAN

BLLSAN

Billund

jeu. 4/23

12:50 pm-2:55 pm

1 stop35h 05m

San Diego

lun. 4/27

7:40 pm-11:15 am

1 stop30h 35m

$847

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

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 December 5, 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, November is the cheapest month in which you can book a flight from Billund to San Diego (average of $548). Flying from Billund to San Diego in July is currently the most expensive (average of $712). 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.

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 23h 02m. Fly via United Airlines to get the fastest option. There are 5553 mi between Billund and San Diego.

  • 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, November is the cheapest month in which you can book a flight from Billund to San Diego (average of $548). Flying from Billund to San Diego in July is currently the most expensive (average of $712). 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
Coronado
La Mesa
Poway
Lemon Grove
Julian
National City

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