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Cheap flights from Bellingham to San Diego from C$ 109

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SAN
28 Aug — 4 Sep1
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 29 July 2026.

Mon 14/97:00 a.m.
BLI
-
SAN
2 stops26h 43m
Multiple Airlines
Thu 24/99:03 p.m.
SAN
-
BLI
1 stop16h 08m
Multiple Airlines
Deal found 26/7C$ 272
Wed 9/97:00 a.m.
BLI
-
SAN
1 stop13h 21m
Alaska Airlines
Sat 19/94:02 p.m.
SAN
-
BLI
1 stop6h 29m
Alaska Airlines
Deal found 24/7C$ 442
Wed 23/97:00 a.m.
BLI
-
SAN
1 stop4h 49m
Alaska Airlines
Sun 27/96:55 a.m.
SAN
-
BLI
1 stop15h 36m
Alaska Airlines
Deal found 28/7C$ 456
Tue 25/87:19 p.m.
BLI
-
SAN
1 stop15h 20m
Alaska Airlines
Tue 1/96:55 a.m.
SAN
-
BLI
1 stop15h 36m
Alaska Airlines
Deal found 28/7C$ 466
Thu 24/97:00 a.m.
BLI
-
SAN
1 stop6h 16m
Alaska Airlines
Tue 29/97:15 a.m.
SAN
-
BLI
1 stop16h 29m
Alaska Airlines
Deal found 26/7C$ 470
Mon 21/97:00 a.m.
BLI
-
SAN
1 stop13h 21m
Alaska Airlines
Fri 25/98:06 p.m.
SAN
-
BLI
1 stop26h 25m
Alaska Airlines
Deal found 24/7C$ 491
Wed 26/87:19 p.m.
BLI
-
SAN
1 stop15h 20m
Alaska Airlines
Wed 2/92:17 p.m.
SAN
-
BLI
2 stops9h 42m
Alaska Airlines
Deal found 29/7C$ 494
Fri 25/97:26 p.m.
BLI
-
SAN
1 stop19h 16m
Alaska Airlines
Sun 27/96:55 a.m.
SAN
-
BLI
2 stops16h 49m
Alaska Airlines
Deal found 28/7C$ 498

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 29 July 2026.

Round-trip from

C$ 272

One-way from

C$ 109

Popular in

September

Cheapest in

December

Average price

C$ 550

Good round-trip deal

C$ 453 or less
14/9-24/9
  • 14/9-24/9
  • 3 total stops
  • 42h 51m total
  • Bellingham to San Diego
Search Deals
21/9
  • 21/9
  • 1 total stop
  • 13h 17m total
  • Bellingham to San Diego
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 197 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (C$ 67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 29 July 2026.
Use the filters below to find and compare flights from Bellingham to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 9/9

7:00 a.m.-8:21 p.m.

1 stop13h 21m

San Diego

Sat 19/9

4:02 p.m.-10:31 p.m.

1 stop6h 29m

C$ 442

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 23/9

7:00 a.m.-11:49 a.m.

1 stop4h 49m

San Diego

Sun 27/9

6:55 a.m.-10:31 p.m.

1 stop15h 36m

C$ 456

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 21/9

7:00 a.m.-8:21 p.m.

1 stop13h 21m

San Diego

Fri 25/9

8:06 p.m.-10:31 p.m.

1 stop26h 25m

C$ 491

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 26/8

7:19 p.m.-10:39 a.m.

1 stop15h 20m

San Diego

Wed 2/9

2:17 p.m.-11:59 p.m.

2 stops9h 42m

C$ 494

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sun 6/9

7:19 p.m.-10:30 a.m.

2 stops15h 11m

San Diego

Thu 10/9

2:17 p.m.-11:44 p.m.

2 stops9h 27m

C$ 542

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sun 20/9

7:00 a.m.-10:30 a.m.

1 stop27h 30m

San Diego

Thu 24/9

2:17 p.m.-10:31 p.m.

1 stop8h 14m

C$ 554
Cheapest one-way
Quickest one-way

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 21/9

7:00 a.m.-8:17 p.m.

1 stop13h 17m

C$ 109

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 7/9

3:01 p.m.-8:15 p.m.

2 stops29h 14m

C$ 188

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sun 20/9

7:00 a.m.-10:30 a.m.

1 stop27h 30m

C$ 285

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 28/9

7:26 p.m.-11:16 a.m.

2 stops15h 50m

C$ 344

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Showing 1-10 of 11 resultsSorted by cheapest first
1
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, December is the cheapest month in which you can book a flight from Bellingham to San Diego (average of C$ 152). Flying from Bellingham to San Diego in September is currently the most expensive (average of C$ 1,127). 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.

How much does it cost to fly round-trip from Bellingham to San Diego?

Airfare is below average for this route at the moment.

Bellingham to San Diego flights typically cost between C$ 466 and C$ 751 in September.
The cheapest round-trip price found within the last 5 days was C$ 272 on Multiple Airlines (14 Sep-24 Sep).

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 2 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 13h 21m. 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 are the cheapest flights from Bellingham to San Diego?

    Looking at all options, your cheapest flight can be booked for C$ 443. While the most popular route (Bellingham - San Diego) can be booked for C$ 560 on average, our data indicates C$ 466 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, December is the cheapest month in which you can book a flight from Bellingham to San Diego (average of C$ 152). Flying from Bellingham to San Diego in September is currently the most expensive (average of C$ 1,127). 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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