SAN - BIO

$409 Find Cheap Flights from San Diego to Bilbao

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Bilbao departing on 8/6. 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
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Bilbao, 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 San Diego to Bilbao, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$572
Delta
Tue 4/14Tue 4/21
SAN - BIO • 2 stops
Cheapest one-way
$409
Typical prices: $551-$739
Iberia
Thu 8/6
SAN - BIO • 2 stops
Top airlines
Delta
Cheapest • from $572 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Diego and Bilbao. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Munich (MUC)
Cheapest • Avg $1,391 (round-trip)
Munich (MUC)
Shortest trip • 17h 05m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Bilbao!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Bilbao (SAN-BIO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Bilbao 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Bilbao

Tue, Apr 14 - Tue, Apr 21
Delta Logo
1:40 pm - 5:30 pm
SAN
-
BIO
18h 50m
2 stops
Delta Logo
6:45 am - 11:50 am
BIO
-
SAN
14h 05m
1 stop
$572Delta
Tue, Apr 14 - Tue, Apr 21
Delta Logo
1:40 pm - 4:30 pm
SAN
-
BIO
17h 50m
1 stop
Delta Logo
6:45 am - 11:50 am
BIO
-
SAN
14h 05m
1 stop
$573Delta
Tue, Apr 14 - Tue, Apr 21
Delta Logo
11:40 am - 5:30 pm
SAN
-
BIO
20h 50m
2 stops
Delta Logo
6:45 am - 6:05 pm
BIO
-
SAN
20h 20m
2 stops
$581Delta
Thu, Apr 9 - Thu, Apr 16
Delta Logo
10:40 am - 5:30 pm
SAN
-
BIO
21h 50m
2 stops
Delta Logo
6:45 am - 11:50 am
BIO
-
SAN
14h 05m
1 stop
$674Delta
Thu, Apr 9 - Thu, Apr 16
Delta Logo
10:40 am - 5:30 pm
SAN
-
BIO
21h 50m
2 stops
Delta Logo
12:00 pm - 10:29 pm
BIO
-
SAN
19h 29m
2 stops
$683Delta
Sat, Apr 11 - Sat, Apr 18
British Airways Logo
3:09 pm - 4:55 pm
SAN
-
BIO
40h 46m
2 stops
British Airways Logo
9:35 pm - 6:46 pm
BIO
-
SAN
54h 11m
2 stops
$703British Airways
Fri, Aug 7 - Thu, Aug 13
Multiple Airlines Logo
10:45 pm - 11:15 pm
SAN
-
BIO
39h 30m
2 stops
Multiple Airlines Logo
6:45 am - 7:16 pm
BIO
-
SAN
21h 31m
2 stops
$719Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
10:52 am - 4:00 pm
SAN
-
BIO
20h 08m
2 stops
United Airlines Logo
6:50 am - 8:39 pm
BIO
-
SAN
22h 49m
3 stops
$776United Airlines
Fri, May 1 - Wed, Jun 10
Iberia Logo
3:21 pm - 8:50 pm
SAN
-
BIO
20h 29m
2 stops
Iberia Logo
1:30 pm - 11:59 pm
BIO
-
SAN
19h 29m
2 stops
$797Iberia
Tue, May 19 - Wed, Jun 10
Lufthansa Logo
11:04 am - 5:10 pm
SAN
-
BIO
21h 06m
2 stops
Lufthansa Logo
7:15 am - 3:25 pm
BIO
-
SAN
17h 10m
1 stop
$800Lufthansa
Booking Insights

KAYAK's insights & trends for San Diego to Bilbao flights

Get data-powered insights and trends into flights from San Diego to Bilbao to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from San Diego to Bilbao?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from San Diego to Bilbao were found on Delta ($572) and British Airways ($703).

Good to know

Low seasonNovember
Cheapest flight$409
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly and prices are also 39% lower on average.
Flight from San Diego to Bilbao

When to book flights from San Diego to Bilbao

Are your dates flexible? Find out the best times to travel from San Diego to Bilbao 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 San Diego to Bilbao

  • What is the cheapest flight from San Diego to Bilbao?

    In the last 3 days, the lowest price for a flight from San Diego to Bilbao was $409 for a one-way ticket and $572 for a round-trip.

  • Do I need a passport to fly between San Diego and Bilbao?

    A passport is required to fly from San Diego to Bilbao.

  • Which aircraft models fly most regularly from San Diego to Bilbao?

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

  • Which airline alliances offer flights from San Diego to Bilbao?

    Star Alliance is the only airline alliance operating flights between San Diego and Bilbao.

  • Which is the best airline for flights from San Diego to Bilbao, United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from San Diego to Bilbao are United Airlines and Lufthansa. With an average price for the route of $1,017 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $946 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from San Diego to Bilbao?

    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 San Diego to Bilbao.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from San Diego 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 San Diego to Bilbao?

    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 Bilbao with an airline and back to San Diego with another airline. Booking your flights between San Diego and BIO 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 San Diego to Bilbao?

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

Reviews of the top airlines flying from San Diego to Bilbao

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Bilbao. 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 San Diego to Bilbao? 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.
7.4
United AirlinesOverall score based on 9345 reviews
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
8.1Crew
Airline reviews

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

8.0 ExcellentAnonymous, Feb 2026
SFO - HKG
Read more United Airlines reviews

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

it was a very short flight so my expectations were low.

Entertainment kept turning itself off. Gave up on watching a movie.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Check-in and in-flight staff were better than average. The seat was a fair size but too hard and not enough padding. The cushion/pillow provided is poor (thin and seems to be disposable ,it provides no effective cushioning or support). Food was OK-ish but no choice of inflight snacks and no easy place to get drinks other than water (I could ask for juice by intruding into the staff area at the back of the plane) Entertainment was very good actually. Overall better than I expected from a US-based airline (sorry!) but compared to ANA or Singapore it was so-so. (I live in Japan so they are my comparative airlines)

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Late flight Delays Poor service Poor staff Worst airline ever

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

The food could be better, more snacks. And have some plugs to chargue the phone.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Extremely pleased with the crew. Best flight attendants ever! Very friendly, genuinely caring and attentive.

Best flight attendants ever! Very customer and service oriented, courteous, professional and helpful.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

It was good although we could not land in Munich due to weather and we had to go to Stuttgart. Missed our second flight. They did get us on another flight but the seats where not the ones I paid for in the flight that we missed.

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Everything you need to know for your flight from San Diego to Bilbao

Information on your arrival and departure airports