$149 Cheap Flights from Bellingham (BLI) to San Diego (SAN)

View $149 flight on Wed, Jan 7, 2026Opens in a new window

Popular airlines from Bellingham, WA (BLI-Bellingham Intl.) to San Diego Intl. Airport (SAN)

Cheap Flights from Bellingham to San Diego (BLI-SAN)

Prices were available within the past 7 days and start at $149 for one-way flights and $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Jan 13 - Tue, Jan 20
BLI
Bellingham
SAN
San Diego
$258 Roundtrip, found 1 hour ago
$258
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Jan 13 from Bellingham to San Diego, returning Tue, Jan 20, priced at $258 found 1 hour ago
Alaska Airlines
Sat, Dec 6 - Mon, Dec 8
BLI
Bellingham
SAN
San Diego
$280 Roundtrip, found 4 days ago
$280
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Bellingham to San Diego, returning Mon, Dec 8, priced at $280 found 4 days ago
Alaska Airlines
Tue, Jan 13 - Tue, Jan 20
BLI
Bellingham
SAN
San Diego
$280 Roundtrip, found 1 hour ago
$280
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Jan 13 from Bellingham to San Diego, returning Tue, Jan 20, priced at $280 found 1 hour ago
Hawaiian Airlines
Sat, Dec 6 - Sat, Dec 13
BLI
Bellingham
SAN
San Diego
$281 Roundtrip, found 2 days ago
$281
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Bellingham to San Diego, returning Sat, Dec 13, priced at $281 found 2 days ago
Alaska Airlines
Wed, Jan 21 - Sat, Jan 24
BLI
Bellingham
SAN
San Diego
$284 Roundtrip, found 3 days ago
$284
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Bellingham to San Diego, returning Sat, Jan 24, priced at $284 found 3 days ago
Hawaiian Airlines
Tue, Feb 10 - Tue, Feb 17
BLI
Bellingham
SAN
San Diego
$286 Roundtrip, found 4 days ago
$286
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Feb 10 from Bellingham to San Diego, returning Tue, Feb 17, priced at $286 found 4 days ago
Hawaiian Airlines
Sat, Jan 10 - Mon, Jan 12
BLI
Bellingham
SAN
San Diego
$289 Roundtrip, found 9 hours ago
$289
Roundtrip
found 9 hours ago
Select Hawaiian Airlines flight, departing Sat, Jan 10 from Bellingham to San Diego, returning Mon, Jan 12, priced at $289 found 9 hours ago
Hawaiian Airlines
Tue, Jan 13 - Fri, Jan 23
BLI
Bellingham
SAN
San Diego
$290 Roundtrip, found 1 hour ago
$290
Roundtrip
found 1 hour ago
Select Hawaiian Airlines flight, departing Tue, Jan 13 from Bellingham to San Diego, returning Fri, Jan 23, priced at $290 found 1 hour ago
Hawaiian Airlines
Sun, Jan 11 - Sat, Jan 17
BLI
Bellingham
SAN
San Diego
$291 Roundtrip, found 1 hour ago
$291
Roundtrip
found 1 hour ago
Select Hawaiian Airlines flight, departing Sun, Jan 11 from Bellingham to San Diego, returning Sat, Jan 17, priced at $291 found 1 hour ago
American Airlines
Tue, Jan 13 - Tue, Jan 20
BLI
Bellingham
SAN
San Diego
$396 Roundtrip, found 1 hour ago
$396
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Jan 13 from Bellingham to San Diego, returning Tue, Jan 20, priced at $396 found 1 hour ago

Find the cheapest month to fly from Bellingham (BLI) to San Diego (SAN)

January is typically the cheapest month to fly

From $216 - $453 per traveler.

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $563
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $563

Frequently asked questions

How much does a flight from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN) cost?
Snag a cheap one-way flight from $149 or cheap return flight from $258 from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN)?
The cheapest month to fly from BLI to SAN is January, when demand is low. Off-peak months are generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BLI to SAN flight.
How many flights per day from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN)?
Direct flights from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BLI to SAN?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN)?
Choose a flight from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN) last-minute?
Booking your ticket from BLI to SAN shortly before your trip is usually more expensive. But if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a BLI to SAN flight and hotel package?
Compared with arranging hotels and flights separately, booking a BLI to SAN flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place takes the hassle out of planning your trip. Just pick your flights and select from our extensive range of stays, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN)?
In most instances, you can cancel or modify your BLI to SAN flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need further details, visit our Customer Service portal.

Travel information

Origin airport
Bellingham Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$258
Distance
1143 mi

Book with confidence

Bellingham to San Diego Flights

The cheapest times to fly from Bellingham to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Bellingham to San Diego are during the month of January. You can find some of the cheapest flights from Bellingham to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bellingham to San Diego

Sunday is one of the best days to book for cheap flights from Bellingham to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Bellingham to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Bellingham to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Bellingham to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Bellingham to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Bellingham to San Diego Flights

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*Available to One Key members.