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Cheap flights from Bellingham to San Diego from C$ 225

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SAN
5 Mar — 12 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bellingham to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from Bellingham to San Diego
Explore the most affordable flight options available from Bellingham to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 February 2026.

Mon 20/43:00 p.m.
BLI
-
SAN
1 stop22h 52m
Multiple Airlines
Wed 22/42:47 p.m.
SAN
-
BLI
1 stop21h 23m
Multiple Airlines
Deal found 2/2C$ 283
Tue 21/412:56 p.m.
BLI
-
SAN
1 stop5h 43m
Alaska Airlines
Sat 25/41:00 p.m.
SAN
-
BLI
1 stop5h 39m
Alaska Airlines
Deal found 2/2C$ 324
Sat 7/35:04 p.m.
BLI
-
SAN
1 stop4h 45m
Alaska Airlines
Mon 9/37:26 p.m.
SAN
-
BLI
1 stop15h 47m
Alaska Airlines
Deal found 2/2C$ 376
Tue 3/33:55 p.m.
BLI
-
SAN
1 stop7h 08m
Alaska Airlines
Tue 10/310:29 a.m.
SAN
-
BLI
2 stops24h 44m
Alaska Airlines
Deal found 3/2C$ 389
Fri 13/34:19 p.m.
BLI
-
SAN
1 stop6h 44m
Alaska Airlines
Wed 18/36:15 a.m.
SAN
-
BLI
1 stop6h 01m
Alaska Airlines
Deal found 1/2C$ 423
Wed 8/71:54 p.m.
BLI
-
SAN
1 stop4h 33m
Alaska Airlines
Sat 18/77:23 p.m.
SAN
-
BLI
1 stop4h 46m
Alaska Airlines
Deal found 3/2C$ 425
Mon 23/24:19 p.m.
BLI
-
SAN
1 stop6h 44m
Alaska Airlines
Fri 27/27:26 p.m.
SAN
-
BLI
1 stop15h 47m
Alaska Airlines
Deal found 2/2C$ 437
Wed 11/33:55 p.m.
BLI
-
SAN
1 stop5h 54m
Multiple Airlines
Sun 15/34:52 p.m.
SAN
-
BLI
1 stop6h 44m
Multiple Airlines
Deal found 1/2C$ 449

Find flight deals from Bellingham to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Bellingham (BLI) 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 3 February 2026.

Round-trip from

C$ 283

One-way from

C$ 225

Popular in

September

Cheapest in

December

Average price

C$ 520

Good round-trip deal

C$ 438 or less
20/4-22/4
  • 20/4-22/4
  • 2 total stops
  • 44h 15m total
  • Bellingham to San Diego
Search Deals
8/5
  • 8/5
  • 1 total stop
  • 11h 40m total
  • Bellingham to San Diego
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (C$ 259 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease (C$ 77 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Bellingham to San Diego.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bellingham 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 629,999 searches. Data last updated 3 February 2026.
Use the filters below to find and compare flights from Bellingham to San Diego that are best for you.

Fly from

Bellingham

Fly to

San Diego

Route

Depart

Return

Price

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 20/4

3:00 p.m.-1:52 p.m.

1 stop22h 52m

San Diego

Wed 22/4

2:47 p.m.-12:10 p.m.

1 stop21h 23m

C$ 283

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Tue 21/4

12:56 p.m.-6:39 p.m.

1 stop5h 43m

San Diego

Sat 25/4

1:00 p.m.-6:39 p.m.

1 stop5h 39m

C$ 324

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sat 7/3

5:04 p.m.-9:49 p.m.

1 stop4h 45m

San Diego

Mon 9/3

7:26 p.m.-11:13 a.m.

1 stop15h 47m

C$ 376

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Tue 3/3

3:55 p.m.-11:03 p.m.

1 stop7h 08m

San Diego

Tue 10/3

10:29 a.m.-11:13 a.m.

2 stops24h 44m

C$ 389

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 8/7

6:00 a.m.-1:02 p.m.

1 stop7h 02m

San Diego

Sat 18/7

6:15 a.m.-1:14 p.m.

1 stop6h 59m

C$ 425

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 23/2

4:19 p.m.-11:03 p.m.

1 stop6h 44m

San Diego

Fri 27/2

7:26 p.m.-11:13 a.m.

1 stop15h 47m

C$ 437

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 8/5

6:00 a.m.-5:40 p.m.

1 stop11h 40m

C$ 225

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sat 16/5

8:00 a.m.-9:56 a.m.

2 stops25h 56m

C$ 250

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Best time to book a flight from Bellingham to San Diego

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

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

Currently, June is the cheapest month in which you can book a flight from Bellingham to San Diego (average of C$ 86). Flying from Bellingham to San Diego in September is currently the most expensive (average of C$ 410). 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 3 February 2026.
Check out reviews from past customers who have flown with Allegiant Air from Bellingham 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.
Allegiant Air
7.2
Good
709 reviews
Check prices

Overall

7.2

Crew

8.1

Comfort

6.8

Food

5.9

Boarding

7.6

Entertainment

5.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Feb 2026

LAS - GEG

It would be nice if the seats reclined a little.
Allegiant Air
7.2
Good
709 reviews
Allegiant Air
7.2
Good
709 reviews
Check prices

Overall

7.2

Crew

8.1

Comfort

6.8

Food

5.9

Boarding

7.6

Entertainment

5.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Feb 2026

LAS - GEG

It would be nice if the seats reclined a little.

Related info for your journey

Find useful and relevant information for your journey from Bellingham 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 popular is this Bellingham to San Diego flight route?

    This flight path from Bellingham to San Diego was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Bellingham to San Diego?

    Airlines like Alaska Airlines fly from Bellingham to San Diego in about 5h 43m. The time it takes to get you to your destination can typically vary by up to . Bellingham and San Diego are separated by a distance of 1839 km.

  • What is the cheapest airline to fly from Bellingham to San Diego round-trip?

    Cheapflights users have booked flights from Bellingham to San Diego round-trip from C$ 100. Allegiant Air is currently priced 79% below the average price you’ll pay for this route.

  • What are the cheapest flights from Bellingham to San Diego?

    Looking at all options, your cheapest flight can be booked for C$ 429. While the most popular route (Bellingham - San Diego) can be booked for C$ 437 on average, our data indicates C$ 451 when flying from Bellingham to San Diego.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Bellingham to San Diego (average of C$ 86). Flying from Bellingham to San Diego in September is currently the most expensive (average of C$ 410). 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

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
La Mesa
Borrego Springs

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Top airline flying from Bellingham to San Diego

Discover the top airline that operate flights from Bellingham to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 3 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 100AverageC$ 178FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Bellingham to San Diego?

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Can Cheapflights find flights from Bellingham to San Diego with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Bellingham to San Diego flexibly with Cheapflights today.

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