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Cheap flights from Bellingham to San Diego from C$ 143

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 18/12. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SAN
26 Dec — 2 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 26 November 2025.

Round-trip from

C$ 310

One-way from

C$ 143

Popular in

September

Cheapest in

June

Average price

C$ 738

Good round-trip deal

C$ 453 or less
31/12-8/1
  • 31/12-8/1
  • 3 total stops
  • 33h 49m total
  • Bellingham to San Diego
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18/12
  • 18/12
  • 1 total stop
  • 20h 23m total
  • Bellingham to San Diego
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Highest demand for flights based on searches. 25% potential increase in price (C$ 253 potential increase over avg. RT price).
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Cheapest flight prices on average. 12% potential price decrease (C$ 80 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Bellingham to San Diego.
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Find 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 26 November 2025.

Wed 31/128:00 a.m.BLI - SAN
2 stops25h 57mMultiple Airlines
Thu 8/12:50 p.m.SAN - BLI
1 stop7h 52mMultiple Airlines
Deal found 24/11C$ 310
Wed 31/128:00 a.m.BLI - SAN
2 stops25h 57mMultiple Airlines
Wed 7/19:43 a.m.SAN - BLI
1 stop28h 08mMultiple Airlines
Deal found 24/11C$ 326
Tue 23/123:45 p.m.BLI - SAN
1 stop20h 26mMultiple Airlines
Tue 30/121:06 p.m.SAN - BLI
1 stop8h 51mMultiple Airlines
Deal found 25/11C$ 382
Mon 29/126:00 a.m.BLI - SAN
2 stops27h 57mMultiple Airlines
Thu 8/12:50 p.m.SAN - BLI
1 stop7h 52mMultiple Airlines
Deal found 24/11C$ 396
Wed 31/124:06 p.m.BLI - SAN
1 stop6h 39mAlaska Airlines
Fri 9/17:03 p.m.SAN - BLI
1 stop17h 20mAlaska Airlines
Deal found 24/11C$ 409
Mon 29/126:00 a.m.BLI - SAN
2 stops27h 57mMultiple Airlines
Wed 7/19:43 a.m.SAN - BLI
1 stop28h 08mMultiple Airlines
Deal found 24/11C$ 412
Wed 31/124:06 p.m.BLI - SAN
2 stops23h 25mAlaska Airlines
Tue 6/18:18 p.m.SAN - BLI
1 stop16h 05mAlaska Airlines
Deal found 24/11C$ 422
Tue 30/123:45 p.m.BLI - SAN
1 stop20h 26mMultiple Airlines
Thu 8/12:50 p.m.SAN - BLI
1 stop7h 52mMultiple Airlines
Deal found 24/11C$ 442

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 26 November 2025.
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

Wed 31/12

8:00 a.m.-9:57 a.m.

2 stops25h 57m

San Diego

Wed 7/1

9:43 a.m.-1:51 p.m.

1 stop28h 08m

C$ 326

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 31/12

8:00 a.m.-12:11 p.m.

1 stop28h 11m

San Diego

Thu 8/1

2:50 p.m.-10:42 p.m.

1 stop7h 52m

C$ 327

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 22/1

9:15 a.m.-5:20 p.m.

1 stop8h 05m

San Diego

Sat 24/1

9:37 a.m.-9:20 p.m.

1 stop11h 43m

C$ 347

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 31/12

4:06 p.m.-10:45 p.m.

1 stop6h 39m

San Diego

Tue 6/1

9:24 p.m.-9:20 p.m.

1 stop23h 56m

C$ 382

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 31/12

4:06 p.m.-10:45 p.m.

1 stop6h 39m

San Diego

Fri 9/1

7:03 p.m.-12:23 p.m.

1 stop17h 20m

C$ 409

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 31/12

4:06 p.m.-10:45 p.m.

1 stop6h 39m

San Diego

Mon 5/1

9:24 p.m.-10:22 p.m.

1 stop24h 58m

C$ 409

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 1/1

4:06 p.m.-9:25 a.m.

1 stop17h 19m

San Diego

Wed 7/1

11:49 a.m.-12:06 a.m.

1 stop12h 17m

C$ 413

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 1/1

4:06 p.m.-9:25 a.m.

1 stop17h 19m

San Diego

Thu 8/1

11:49 a.m.-12:06 a.m.

1 stop12h 17m

C$ 415

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 1/1

4:06 p.m.-9:25 a.m.

1 stop17h 19m

San Diego

Mon 5/1

9:24 p.m.-10:22 p.m.

1 stop24h 58m

C$ 442

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 18/12

4:15 p.m.-12:38 p.m.

1 stop20h 23m

C$ 143

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/11

Showing 1-10 of 14 results
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$ 65). Flying from Bellingham to San Diego in September is currently the most expensive (average of C$ 439). 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 26 November 2025.
Check out reviews from past customers who have flown with Alaska Airlines and 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.
Alaska Airlines
8.0
Very good
11,352 reviews
Check prices

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,352 reviews
Alaska Airlines
8.0
Very good
11,352 reviews
Check prices

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Allegiant Air
7.2
Good
700 reviews
Alaska Airlines
8.0
Very good
11,352 reviews
Check prices

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 5 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 8h 05m. 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 airlines flying from Bellingham to San Diego round-trip?

    Cheapflights users have booked flights from Bellingham to San Diego round-trip from C$ 103. Another airline that can offer you cheap pricing is Alaska Airlines. 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$ 443. While the most popular route (Bellingham - San Diego) can be booked for C$ 334 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$ 65). Flying from Bellingham to San Diego in September is currently the most expensive (average of C$ 439). 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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Alternative routes for Bellingham to San Diego

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Top 2 airlines flying from Bellingham to San Diego

Discover the top 2 airlines 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 26 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 103AverageC$ 204FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights
Alaska AirlinesCheapestC$ 308AverageC$ 602FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines 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?

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