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Cheap flights from Bellingham to San Diego from C$ 344

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 15/7. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SAN
27 Jun — 4 Jul1
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 28 May 2026.

Sun 12/71:16 p.m.
BLI
-
SAN
1 stop6h 50m
Multiple Airlines
Wed 15/73:03 p.m.
SAN
-
BLI
1 stop19h 36m
Multiple Airlines
Deal found 27/5C$ 449
Mon 15/63:47 p.m.
BLI
-
SAN
1 stop17h 01m
Multiple Airlines
Mon 29/69:43 a.m.
SAN
-
BLI
1 stop12h 09m
Multiple Airlines
Deal found 24/5C$ 471
Mon 5/107:18 p.m.
BLI
-
SAN
1 stop14h 48m
Alaska Airlines
Sat 17/1011:02 a.m.
SAN
-
BLI
1 stop11h 33m
Alaska Airlines
Deal found 24/5C$ 500
Wed 1/75:26 p.m.
BLI
-
SAN
1 stop4h 41m
Alaska Airlines
Mon 6/78:35 p.m.
SAN
-
BLI
1 stop20h 11m
Alaska Airlines
Deal found 26/5C$ 507
Mon 28/92:06 p.m.
BLI
-
SAN
1 stop20h 40m
Alaska Airlines
Fri 2/106:35 p.m.
SAN
-
BLI
1 stop24h 03m
Alaska Airlines
Deal found 27/5C$ 516
Mon 17/81:49 p.m.
BLI
-
SAN
1 stop23h 12m
Alaska Airlines
Mon 24/86:35 p.m.
SAN
-
BLI
1 stop24h 04m
Alaska Airlines
Deal found 26/5C$ 523
Wed 8/75:26 p.m.
BLI
-
SAN
1 stop6h 30m
Alaska Airlines
Sat 18/76:35 p.m.
SAN
-
BLI
1 stop5h 31m
Alaska Airlines
Deal found 27/5C$ 532
Sat 4/78:30 a.m.
BLI
-
SAN
1 stop4h 57m
Alaska Airlines
Sat 11/78:35 p.m.
SAN
-
BLI
1 stop20h 11m
Alaska Airlines
Deal found 24/5C$ 549
Thu 25/61:21 p.m.
BLI
-
SAN
1 stop19h 27m
Multiple Airlines
Sun 28/69:43 a.m.
SAN
-
BLI
1 stop23h 18m
Multiple Airlines
Deal found 23/5C$ 550

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 28 May 2026.

Round-trip from

C$ 449

One-way from

C$ 344

Popular in

September

Cheapest in

December

Average price

C$ 635

Good round-trip deal

C$ 444 or less
12/7-15/7
  • 12/7-15/7
  • 2 total stops
  • 26h 26m total
  • Bellingham to San Diego
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 15/7
  • 2 total stops
  • 16h 09m total
  • Bellingham to San Diego
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (C$ 241 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (C$ 77 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 28 May 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

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 5/10

7:18 p.m.-10:06 a.m.

1 stop14h 48m

San Diego

Sat 17/10

11:02 a.m.-10:35 p.m.

1 stop11h 33m

C$ 500

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 1/7

5:26 p.m.-10:07 p.m.

1 stop4h 41m

San Diego

Mon 6/7

8:35 p.m.-4:46 p.m.

1 stop20h 11m

C$ 507

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 28/9

2:06 p.m.-11:45 a.m.

1 stop21h 39m

San Diego

Fri 2/10

4:50 p.m.-1:29 p.m.

1 stop20h 39m

C$ 516
Quickest round-trip

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 8/7

5:26 p.m.-11:56 p.m.

1 stop6h 30m

San Diego

Sat 18/7

6:35 p.m.-12:06 a.m.

1 stop5h 31m

C$ 532

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sat 4/7

6:00 a.m.-1:01 p.m.

1 stop7h 01m

San Diego

Sat 11/7

8:35 p.m.-4:46 p.m.

1 stop20h 11m

C$ 549

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 4/9

7:19 p.m.-1:19 p.m.

1 stop18h 00m

San Diego

Mon 7/9

6:15 a.m.-1:12 p.m.

1 stop6h 57m

C$ 568
Cheapest one-way

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 15/7

5:26 p.m.-9:35 a.m.

2 stops16h 09m

C$ 344
Quickest one-way

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Tue 9/6

6:00 a.m.-5:05 p.m.

2 stops11h 05m

C$ 659

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/5

Sorted by cheapest first

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$ 149). Flying from Bellingham to San Diego in September is currently the most expensive (average of C$ 1,105). 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?

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 28 May 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
7.3
Good
710 reviews
Check prices

Comfort

6.9

Crew

8.1

Food

5.9

Entertainment

5.5

Boarding

7.6

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

larry,Apr 2026

PSC - SNA

After waiting more than 6 hours our flight was delayed until the next day. The flight was extremely uncomfortable. Like riding on hard plastic lawn chairs in the sky.
Allegiant Air
7.3
Good
710 reviews
Allegiant Air
7.3
Good
710 reviews
Check prices

Comfort

6.9

Crew

8.1

Food

5.9

Entertainment

5.5

Boarding

7.6

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

larry,Apr 2026

PSC - SNA

After waiting more than 6 hours our flight was delayed until the next day. The flight was extremely uncomfortable. Like riding on hard plastic lawn chairs in the sky.

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 3 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 14h 48m. 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$ 134. Allegiant Air is currently priced 73% 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$ 434. While the most popular route (Bellingham - San Diego) can be booked for C$ 513 on average, our data indicates C$ 457 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$ 149). Flying from Bellingham to San Diego in September is currently the most expensive (average of C$ 1,105). 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

Browse thousands of different options on Cheapflights for your next trip

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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 28 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 134AverageC$ 211FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights

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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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