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$101+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SAN
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$182
(Kiwi.com)

One-way from

$101
(Kiwi.com)

Popular in

September

Cheapest in

December

Average price

$301
Provider with most accurate pricing for Bellingham-San Diego flight deals.
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Provider most trusted by Cheapflights users for Bellingham-San Diego flights.
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From Bellingham to San Diego
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One-way flight from Bellingham to San Diego
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($142 potential increase over avg. RT price).
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Cheapest flight prices on average. 13% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Fri 3/136:00 amBLI - SAN
1 stop10h 13mMultiple Airlines
Tue 3/172:08 pmSAN - BLI
1 stop28h 48mMultiple Airlines
Deal found 1/7$190
This Expedia deal was found by Cheapflights users on 1/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/271:03 pmBLI - SAN
1 stop6h 16mAlaska Airlines
Tue 2/32:20 pmSAN - BLI
1 stop7h 00mAlaska Airlines
Deal found 1/7$223
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Thu 2/57:30 amBLI - SAN
1 stop6h 31mMultiple Airlines
Thu 2/122:38 pmSAN - BLI
1 stop8h 54mMultiple Airlines
Deal found 1/7$226
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/234:19 pmBLI - SAN
1 stop24h 27mAlaska Airlines
Fri 2/278:26 pmSAN - BLI
1 stop14h 47mAlaska Airlines
Deal found 1/7$232
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/301:03 pmBLI - SAN
1 stop21h 04mAlaska Airlines
Mon 2/26:15 amSAN - BLI
1 stop6h 08mAlaska Airlines
Deal found 1/7$243
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/109:15 amBLI - SAN
1 stop8h 05mAlaska Airlines
Mon 2/166:15 amSAN - BLI
1 stop4h 58mAlaska Airlines
Deal found 1/6$284

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 January 8, 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

Tue 1/27

1:03 pm-7:19 pm

1 stop6h 16m

San Diego

Tue 2/3

2:20 pm-9:20 pm

1 stop7h 00m

$223

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 2/5

7:30 am-2:01 pm

1 stop6h 31m

San Diego

Thu 2/12

2:38 pm-11:32 pm

1 stop8h 54m

$226

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 2/23

4:19 pm-4:46 pm

1 stop24h 27m

San Diego

Fri 2/27

8:26 pm-11:13 am

1 stop14h 47m

$232

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 3/13

6:00 am-12:16 am

2 stops18h 16m

San Diego

Tue 3/17

2:08 pm-6:56 pm

1 stop28h 48m

$245

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Tue 2/10

9:15 am-5:20 pm

1 stop8h 05m

San Diego

Mon 2/16

6:15 am-11:13 am

1 stop4h 58m

$284

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 1/30

1:03 pm-7:19 pm

1 stop6h 16m

San Diego

Mon 2/2

9:59 pm-12:23 pm

2 stops14h 24m

$291

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 3/19

6:19 pm-11:58 pm

1 stop5h 39m

San Diego

Sun 3/22

7:35 pm-12:16 pm

1 stop16h 41m

$321

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 2/5

1:03 pm-9:14 pm

2 stops32h 11m

San Diego

Thu 2/12

2:16 pm-11:13 am

2 stops20h 57m

$334

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Thu 2/19

6:00 am-3:17 pm

1 stop9h 17m

$101

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Sat 2/21

10:00 am-7:53 pm

1 stop9h 53m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 16 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 January.
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, June is the cheapest month in which you can book a flight from Bellingham to San Diego (average of $63). Flying from Bellingham to San Diego in September is currently the most expensive (average of $300). 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 January 8, 2026.
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
11,672 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

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
11,672 reviews
Alaska Airlines
8.0
Very good
11,672 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

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
702 reviews
Alaska Airlines
8.0
Very good
11,672 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

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 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 $92, 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 73% 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, June is the cheapest month in which you can book a flight from Bellingham to San Diego (average of $63). Flying from Bellingham to San Diego in September is currently the most expensive (average of $300). 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
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$92Average$143FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$260Average$382FlexibilityNo cancel feeOn-time75%

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