HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$645+ Cheap flights from Luxembourg (LUX) 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
LUX — SAN
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Luxembourg to San Diego 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 Luxembourg to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Luxembourg (LUX) 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 14, 2025.

Round-trip from

$645
(Billigflug)

Popular in

August

Cheapest in

May

Average price

$800
From Luxembourg to San Diego
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($93 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Luxembourg to San Diego

Cheapest flights from Luxembourg to San Diego
Explore the most affordable flight options available from Luxembourg to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Billigflug deal was found by Cheapflights users on 9/13. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/162:30 pmLUX - SAN
2 stops18h 45mLufthansa
Mon 10/205:15 pmSAN - LUX
1 stop17h 20mLufthansa
Deal found 9/13$645
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:30 amLUX - SAN
1 stop15h 15mLufthansa
Sat 12/611:11 amSAN - LUX
2 stops17h 24mLufthansa
Deal found 9/11$647
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:10 amLUX - SAN
1 stop14h 50mDelta
Wed 10/226:20 amSAN - LUX
2 stops22h 25mDelta
Deal found 9/14$670
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:50 amLUX - SAN
1 stop14h 35mUnited Airlines
Wed 10/225:15 pmSAN - LUX
1 stop13h 55mUnited Airlines
Deal found 9/14$679
This Billigflug deal was found by Cheapflights users on 9/13. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:50 amLUX - SAN
1 stop14h 35mMultiple Airlines
Mon 10/205:15 pmSAN - LUX
1 stop17h 20mMultiple Airlines
Deal found 9/13$701
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:55 pmLUX - SAN
1 stop27h 15mBritish Airways
Sat 12/66:00 pmSAN - LUX
1 stop14h 30mBritish Airways
Deal found 9/11$1,022
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:30 amLUX - SAN
3 stops45h 23mUnited Airlines
Sat 12/68:00 pmSAN - LUX
2 stops59h 20mUnited Airlines
Deal found 9/11$1,233
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:20 pmLUX - SAN
3 stops30h 05mMultiple Airlines
Wed 10/228:10 amSAN - LUX
2 stops17h 25mMultiple Airlines
Deal found 9/14$1,857

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luxembourg 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 14, 2025.
Use the filters below to find and compare flights from Luxembourg to San Diego that are best for you.

Fly from

Luxembourg

Fly to

San Diego

Route

Depart

Return

Price

LuxembourgSan Diego

LUX - SAN

LUXSAN

Luxembourg

Thu 10/16

2:30 pm-12:15 am

2 stops18h 45m

San Diego

Mon 10/20

6:48 am-1:40 pm

2 stops21h 52m

$645

LuxembourgSan Diego

LUX - SAN

LUXSAN

Luxembourg

Thu 10/16

2:30 pm-12:15 am

2 stops18h 45m

San Diego

Mon 10/20

5:15 pm-7:35 pm

1 stop17h 20m

$645

LuxembourgSan Diego

LUX - SAN

LUXSAN

Luxembourg

Thu 11/13

9:30 am-3:45 pm

1 stop15h 15m

San Diego

Sat 12/6

11:11 am-1:35 pm

2 stops17h 24m

$647

LuxembourgSan Diego

LUX - SAN

LUXSAN

Luxembourg

Fri 2/20

7:10 am-11:38 am

2 stops37h 28m

San Diego

Tue 2/24

12:25 pm-10:05 am

2 stops36h 40m

$648

LuxembourgSan Diego

LUX - SAN

LUXSAN

Luxembourg

Fri 2/20

9:30 am-3:45 pm

1 stop15h 15m

San Diego

Tue 2/24

12:45 pm-7:30 pm

2 stops21h 45m

$652

LuxembourgSan Diego

LUX - SAN

LUXSAN

Luxembourg

Thu 10/16

6:10 am-12:00 pm

1 stop14h 50m

San Diego

Wed 10/22

6:20 am-1:45 pm

2 stops22h 25m

$670

LuxembourgSan Diego

LUX - SAN

LUXSAN

Luxembourg

Thu 10/16

9:50 am-3:25 pm

1 stop14h 35m

San Diego

Wed 10/22

5:15 pm-4:10 pm

1 stop13h 55m

$679

LuxembourgSan Diego

LUX - SAN

LUXSAN

Luxembourg

Fri 2/20

9:55 pm-4:10 pm

1 stop27h 15m

San Diego

Tue 2/24

6:00 pm-9:10 pm

1 stop18h 10m

$816

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from Luxembourg to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Luxembourg 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 Luxembourg to San Diego

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

Currently, August is the cheapest month in which you can book a flight from Luxembourg to San Diego (average of $286). Flying from Luxembourg 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.

Related info for your journey

Find useful and relevant information for your journey from Luxembourg 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 Luxembourg to San Diego?

    Departing from Luxembourg to San Diego will take you 18h 45m. The distance between Luxembourg and San Diego is about 5770 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Luxembourg 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 Luxembourg to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Luxembourg to San Diego (average of $286). Flying from Luxembourg 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

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 for Luxembourg to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Luxembourg to Los Angeles flights
Luxembourg to Las Vegas flights
Luxembourg to San Francisco flights
Luxembourg to Ontario flights
Luxembourg to Oakland flights
Luxembourg to Sacramento flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.