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$705+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — SAN
Jul 14 — Jul 211
Mon 7/14
Mon 7/21
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 July 9, 2025.

Round-trip from

$705
(Travelis)

Popular in

July

Cheapest in

January

Average price

$906
From Billund to San Diego
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 9, 2025.

This Travelis deal was found by Cheapflights users on 7/9. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:00 amBLL - SAN
1 stop18h 25mLufthansa
Fri 10/317:00 amSAN - BLL
2 stops19h 00mLufthansa
Deal found 7/9$705
This Finnair deal was found by Cheapflights users on 7/8. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/87:25 amBLL - SAN
2 stops24h 05mMultiple Airlines
Tue 8/127:15 amSAN - BLL
2 stops21h 10mMultiple Airlines
Deal found 7/8$730
This SWISS deal was found by Cheapflights users on 7/9. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:40 pmBLL - SAN
2 stops32h 55mSWISS
Tue 8/126:35 amSAN - BLL
3 stops50h 15mSWISS
Deal found 7/9$795
This Travelis deal was found by Cheapflights users on 7/9. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:00 amBLL - SAN
1 stop15h 00mKLM
Tue 8/121:55 pmSAN - BLL
1 stop24h 05mKLM
Deal found 7/9$797
This Flysmarter deal was found by Cheapflights users on 7/9. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/105:00 pmBLL - SAN
3 stops30h 23mBritish Airways
Fri 10/3110:45 pmSAN - BLL
3 stops37h 00mBritish Airways
Deal found 7/9$1,172

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 July 9, 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 10/10

6:00 am-3:25 pm

1 stop18h 25m

San Diego

Fri 10/31

7:00 am-10:00 am

2 stops19h 00m

$705

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Fri 8/8

7:25 am-10:30 pm

2 stops24h 05m

San Diego

Tue 8/12

7:15 am-1:25 pm

2 stops21h 10m

$730

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Thu 8/7

6:40 pm-6:35 pm

2 stops32h 55m

San Diego

Tue 8/12

6:35 am-5:50 pm

3 stops50h 15m

$795

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Thu 8/7

6:00 am-12:00 pm

1 stop15h 00m

San Diego

Tue 8/12

1:55 pm-11:00 pm

1 stop24h 05m

$797

BillundSan Diego

BLL - SAN

BLLSAN

Billund

Fri 10/10

5:00 pm-2:23 pm

3 stops30h 23m

San Diego

Fri 10/31

10:45 pm-7:45 pm

3 stops37h 00m

$1,172

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

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 June 27, 2025.

To ensure you get the cheapest price possible for a flight from Billund to San Diego, you should look to book at least 53 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.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated July 9, 2025.
Peruse reviews from past customers who have flown with KLM, SWISS, and Lufthansa from Billund to San Diego 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.
KLM
7.8
Good
1,370 reviews

Entertainment

7.1

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,370 reviews
KLM
7.8
Good
1,370 reviews

Entertainment

7.1

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
SWISS
7.5
Good
1,650 reviews
KLM
7.8
Good
1,370 reviews

Entertainment

7.1

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Lufthansa
6.8
Okay
7,197 reviews
KLM
7.8
Good
1,370 reviews

Entertainment

7.1

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
British Airways
6.6
Okay
7,103 reviews
KLM
7.8
Good
1,370 reviews

Entertainment

7.1

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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.

  • What are the cheapest airlines flying from Billund to San Diego round-trip?

    According to our current data, Lufthansa ($705), SWISS ($795), and KLM ($797) offers the cheapest pricing from Billund to San Diego. Lufthansa is priced at 3% lower than the current average price of a flight leaving 3 months from now.

  • 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 Billund?

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

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