San Diego

$211+ Cheap flights from Hilo to San Diego (ITO - 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
ITO — SAN
Apr 15 — Apr 221
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Hilo to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Hilo to San Diego

Cheapest flights from Hilo to San Diego
Explore the most affordable flight options available from Hilo to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This Southwest deal was found by Cheapflights users on 3/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:30 pm
ITO
-
SAN
1 stop11h 25m
Southwest
Mon 4/277:20 am
SAN
-
ITO
2 stops13h 50m
Southwest
Deal found 3/11$362
This Southwest deal was found by Cheapflights users on 3/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/153:30 pm
ITO
-
SAN
1 stop11h 25m
Southwest
Tue 4/288:40 am
SAN
-
ITO
1 stop12h 30m
Southwest
Deal found 3/14$395
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:00 am
ITO
-
SAN
2 stops10h 20m
Southwest
Tue 5/128:15 am
SAN
-
ITO
2 stops12h 55m
Southwest
Deal found 3/15$423
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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 4/297:44 pm
ITO
-
SAN
1 stop7h 56m
Multiple Airlines
Wed 5/610:51 am
SAN
-
ITO
2 stops13h 42m
Multiple Airlines
Deal found 3/15$427
This Expedia deal was found by Cheapflights users on 3/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:52 pm
ITO
-
SAN
1 stop7h 58m
Alaska Airlines
Tue 9/812:30 pm
SAN
-
ITO
1 stop8h 50m
Alaska Airlines
Deal found 3/14$435
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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.
Wed 9/27:29 am
ITO
-
SAN
1 stop10h 01m
Multiple Airlines
Tue 9/811:52 am
SAN
-
ITO
2 stops13h 04m
Multiple Airlines
Deal found 3/14$445
This CheapOair deal was found by Cheapflights users on 3/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:44 pm
ITO
-
SAN
1 stop7h 56m
Multiple Airlines
Tue 5/1210:51 am
SAN
-
ITO
2 stops13h 42m
Multiple Airlines
Deal found 3/13$452

Find flight deals from Hilo to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Hilo (ITO) 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 March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$362
(Southwest)

One-way from

$211
(Southwest)

Popular in

March

Cheapest in

February

Average price

$871
Provider with most accurate pricing for Hilo Intl-San Diego flight deals.
Provider most trusted by Cheapflights users for Hilo Intl-San Diego flights.
From Hilo Intl to San Diego
One-way flight from Hilo Intl to San Diego
Highest demand for flights based on searches. 12% potential increase in price ($76 potential increase over avg. RT price).
Cheapest flight prices on average. 8% potential price decrease ($40 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hilo 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 March 16, 2026.
Use the filters below to find and compare flights from Hilo to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Thu 4/23

3:30 pm-5:55 am

1 stop11h 25m

San Diego

Mon 4/27

7:20 am-6:10 pm

2 stops13h 50m

$362

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Wed 4/15

3:30 pm-5:55 am

1 stop11h 25m

San Diego

Tue 4/28

7:25 am-6:10 pm

2 stops13h 45m

$441

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Tue 5/5

3:30 pm-5:55 am

1 stop11h 25m

San Diego

Tue 5/12

8:15 am-6:10 pm

2 stops12h 55m

$448

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Wed 4/15

4:45 pm-7:20 am

1 stop11h 35m

San Diego

Tue 4/28

7:15 am-5:39 pm

2 stops13h 24m

$466
Quickest round-trip

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Tue 4/21

5:57 pm-7:20 am

1 stop10h 23m

San Diego

Wed 4/22

2:18 pm-7:13 pm

1 stop7h 55m

$472

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Tue 5/5

5:59 pm-6:40 am

1 stop9h 41m

San Diego

Tue 5/12

10:25 am-5:39 pm

1 stop10h 14m

$491
Cheapest one-way

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Thu 4/16

6:00 am-4:40 pm

1 stop7h 40m

$211

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Wed 8/19

6:00 am-8:07 pm

2 stops11h 07m

$228
Quickest one-way

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Thu 6/4

6:00 am-4:35 pm

1 stop7h 35m

$248

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

Wed 4/15

6:00 am-4:40 pm

1 stop7h 40m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 15 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Hilo-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hilo-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hilo-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hilo-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 Hilo-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 Hilo to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Hilo 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 Hilo to San Diego

What is the cheapest month to book a flight from Hilo to San Diego?

Currently, February is the cheapest month in which you can book a flight from Hilo to San Diego (average of $163). Flying from Hilo to San Diego in June is currently the most expensive (average of $437). 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 March 16, 2026.
See what other customers who have flown with Southwest and Alaska Airlines from Hilo to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Hilo 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 Hilo to San Diego?

    Departing from Hilo to San Diego will take you 11h 25m. Airlines will cover a distance of 2494 mi.

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

    Cheapflights users have booked flights from Hilo to San Diego round-trip from $315. Another airline that can offer you cheap pricing is Alaska Airlines. Southwest is 38% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Hilo to San Diego one-way?

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $124. Users have also found prices from $174 and $178 on Hawaiian Airlines and Southwest, respectively.

  • Can I find deals for flights from Hilo to San Diego that include hotel bookings?

    Yes. In addition to deals on Hilo to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hilo to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hilo to San Diego.

  • Can I find deals for business class flights from Hilo to San Diego?

    Yes. Cheapflights offers flight deals from Hilo 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 Hilo to San Diego?

    Currently, February is the cheapest month in which you can book a flight from Hilo to San Diego (average of $163). Flying from Hilo to San Diego in June is currently the most expensive (average of $437). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Hilo to San Diego

Discover the top 2 airlines that operate flights from Hilo 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 March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$315Average$540FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$344Average$478FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.