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$120+ Cheap flights from Bellingham to San Diego (BLI - SAN)

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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SAN
Jan 4 — Jan 111
Sun 1/4
Sun 1/11
1 adult, Economy
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Cheap flight deals from Bellingham to San Diego

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 December 5, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/179:00 amBLI - SAN
1 stop27h 11mMultiple Airlines
Sun 12/211:06 pmSAN - BLI
1 stop9h 21mMultiple Airlines
Deal found 12/2$251
This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:00 amBLI - SAN
2 stops32h 53mMultiple Airlines
Fri 12/197:21 pmSAN - BLI
1 stop15h 27mMultiple Airlines
Deal found 12/3$292
This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/203:32 pmBLI - SAN
1 stop20h 39mMultiple Airlines
Mon 12/297:21 pmSAN - BLI
1 stop18h 21mMultiple Airlines
Deal found 12/3$319
This Trip.com deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:00 amBLI - SAN
1 stop6h 38mMultiple Airlines
Tue 12/301:06 pmSAN - BLI
1 stop8h 51mMultiple Airlines
Deal found 12/1$355
This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:00 amBLI - SAN
1 stop6h 38mMultiple Airlines
Fri 1/27:21 pmSAN - BLI
1 stop26h 36mMultiple Airlines
Deal found 12/3$420
This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:54 pmBLI - SAN
2 stops17h 21mMultiple Airlines
Thu 1/11:06 pmSAN - BLI
1 stop23h 06mMultiple Airlines
Deal found 12/3$434

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 December 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$230
(Alaska Airlines)

One-way from

$120
(Kiwi.com)

Popular in

September

Cheapest in

June

Average price

$315
Provider with most accurate pricing for Bellingham-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bellingham-San Diego flights.
Search Deals
From Bellingham to San Diego
Search Deals
One-way flight from Bellingham to San Diego
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 2,558,603 searches. Data last updated December 5, 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

Sat 1/17

1:03 pm-7:19 pm

1 stop6h 16m

San Diego

Sun 1/25

6:15 am-12:23 pm

1 stop6h 08m

$230

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 1/23

1:03 pm-3:21 pm

2 stops26h 18m

San Diego

Tue 1/27

2:20 pm-12:06 am

1 stop9h 46m

$253

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sun 1/4

7:54 pm-12:38 pm

1 stop16h 44m

San Diego

Fri 1/9

6:36 am-8:19 pm

2 stops13h 43m

$266

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 1/9

9:30 am-1:51 pm

2 stops28h 21m

San Diego

Sun 1/11

2:50 pm-10:42 pm

1 stop7h 52m

$274

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sun 1/11

7:30 am-1:29 pm

1 stop5h 59m

San Diego

Wed 1/14

1:35 pm-10:42 pm

2 stops33h 07m

$285

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 1/9

1:03 pm-10:07 am

1 stop21h 04m

San Diego

Sun 1/11

6:15 am-12:06 am

1 stop17h 51m

$285

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 2/16

6:00 am-12:38 pm

1 stop6h 38m

San Diego

Fri 2/20

4:22 pm-5:04 pm

2 stops24h 42m

$288

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 12/15

9:00 am-5:53 pm

2 stops32h 53m

San Diego

Fri 12/19

7:21 pm-10:48 am

1 stop15h 27m

$292

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sun 1/11

1:03 pm-7:19 pm

1 stop6h 16m

San Diego

Wed 1/14

4:01 pm-9:20 pm

1 stop5h 19m

$297

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sun 1/18

1:03 pm-8:33 am

2 stops19h 30m

San Diego

Thu 1/22

4:01 pm-12:23 pm

2 stops20h 22m

$300

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 15 results
1
2

Compare providers for flights from Bellingham to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bellingham to San Diego in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Bellingham-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bellingham-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Bellingham-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bellingham-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bellingham-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $46). Flying from Bellingham to San Diego in September is currently the most expensive (average of $311). 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 December 5, 2025.
Read through reviews of airlines operating flights from Bellingham to San Diego, such as Alaska Airlines and Allegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

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
11,402 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

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
698 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

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 long is the flight from Bellingham to San Diego?

    Alaska Airlines can get you from Bellingham to San Diego in just under 6h 16m. Your travel time can differ by up to . The distance from Bellingham to San Diego is about 1143 mi.

  • What are the cheapest airlines flying from Bellingham to San Diego round-trip?

    Allegiant Air, at $100, was found to be the cheapest airline from Bellingham to San Diego. An alternate airline flying to your destination would be Alaska Airlines. Allegiant Air is 72% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $46). Flying from Bellingham to San Diego in September is currently the most expensive (average of $311). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
Julian
National City

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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 2,558,603 searches. Data last updated December 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$100Average$160FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$271Average$381FlexibilityNo cancel feeOn-time75%

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