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$125+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SAN
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Cheapflights Tip: The best prices from Bellingham to San Diego are usually found in June or July, booked 29 days in advance, depart on a Monday or Wednesday and return on a Monday

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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$208
(Kiwi.com)

One-way from

$125
(Kiwi.com)

Popular in

September

Cheapest in

June

Average price

$351
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
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Highest demand for flights based on searches. 20% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/108:00 amBLI - SAN
2 stops36h 24mMultiple Airlines
Fri 11/148:30 amSAN - BLI
1 stop9h 43mMultiple Airlines
Deal found 10/14$202
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 11/108:00 amBLI - SAN
2 stops36h 24mMultiple Airlines
Mon 11/173:59 pmSAN - BLI
1 stop7h 13mMultiple Airlines
Deal found 10/13$208
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/148:00 amBLI - SAN
1 stop15h 48mMultiple Airlines
Mon 11/173:59 pmSAN - BLI
1 stop7h 13mMultiple Airlines
Deal found 10/14$227
This KAYAK deal was found by Cheapflights users on 10/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:04 pmBLI - SAN
1 stop6h 55mHawaiian Airlines
Wed 11/196:15 amSAN - BLI
1 stop5h 56mHawaiian Airlines
Deal found 10/13$237
This Alaska Airlines deal was found by Cheapflights users on 10/14. 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 11/119:25 amBLI - SAN
1 stop13h 34mAlaska Airlines
Tue 11/186:38 pmSAN - BLI
1 stop5h 28mAlaska Airlines
Deal found 10/14$245
This Alaska Airlines deal was found by Cheapflights users on 10/14. 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 11/104:04 pmBLI - SAN
1 stop6h 55mAlaska Airlines
Fri 11/146:38 pmSAN - BLI
1 stop17h 33mAlaska Airlines
Deal found 10/14$254
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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.
Sat 11/221:16 pmBLI - SAN
1 stop10h 54mAlaska Airlines
Tue 12/26:15 amSAN - BLI
1 stop6h 09mAlaska Airlines
Deal found 10/13$282
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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 11/105:15 amBLI - SAN
1 stop4h 57mAlaska Airlines
Mon 11/176:15 amSAN - BLI
1 stop9h 09mAlaska Airlines
Deal found 10/13$284
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 11/129:25 amBLI - SAN
2 stops6h 25mAlaska Airlines
Wed 11/196:15 amSAN - BLI
1 stop9h 09mAlaska Airlines
Deal found 10/13$292

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 October 14, 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

Mon 11/10

8:00 am-8:24 pm

2 stops36h 24m

San Diego

Fri 11/14

8:30 am-6:13 pm

1 stop9h 43m

$202

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 11/10

8:00 am-8:24 pm

2 stops36h 24m

San Diego

Mon 11/17

3:59 pm-11:12 pm

1 stop7h 13m

$208

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 11/14

8:00 am-11:48 pm

1 stop15h 48m

San Diego

Mon 11/17

3:59 pm-11:12 pm

1 stop7h 13m

$227

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 11/12

4:04 pm-10:59 pm

1 stop6h 55m

San Diego

Wed 11/19

6:15 am-12:11 pm

1 stop5h 56m

$237

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Tue 11/11

9:25 am-10:59 pm

1 stop13h 34m

San Diego

Tue 11/18

6:38 pm-12:06 am

1 stop5h 28m

$245

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 11/10

5:15 am-10:12 am

1 stop4h 57m

San Diego

Fri 11/14

3:43 pm-12:11 pm

1 stop20h 28m

$254

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 11/10

5:15 am-10:12 am

1 stop4h 57m

San Diego

Mon 11/17

6:15 am-3:24 pm

1 stop9h 09m

$284

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Wed 11/12

9:25 am-3:50 pm

2 stops6h 25m

San Diego

Wed 11/19

6:15 am-3:24 pm

1 stop9h 09m

$292

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 11/28

5:12 pm-6:30 am

2 stops13h 18m

$256

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Fri 11/28

5:12 pm-6:30 am

3 stops37h 18m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bellingham-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

How far ahead should I book a flight from Bellingham to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Bellingham to San Diego. Price data was last updated on October 10, 2025.

To ensure you get the cheapest price possible for a flight from Bellingham to San Diego, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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.

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 October 14, 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
11,083 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Food

7.1

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
11,083 reviews
Alaska Airlines
8.0
Very good
11,083 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Food

7.1

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
693 reviews
Alaska Airlines
8.0
Very good
11,083 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Food

7.1

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?

    Hawaiian Airlines can get you from Bellingham to San Diego in just under 6h 55m. 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 74% 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
Imperial Beach
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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$100Average$180FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$265Average$406FlexibilityNo cancel feeOn-time75%

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