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$237+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
ITO — SAN
jun. 23 — jun. 301
lun. 6/23
lun. 6/30
1 adult, Economy
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Cheap 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 junio 18, 2025.

Round-trip from

$308
(Southwest)

One-way from

$237
(Alaska Airlines)

Popular in

March

Cheapest in

May

Average price

$738
From Hilo Intl to San Diego
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One-way flight from Hilo Intl to San Diego
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Highest demand for flights based on searches. 19% potential increase in price ($142 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 junio 18, 2025.

This Southwest deal was found by Cheapflights users on 6/15. 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.
mar. 9/236:00 amITO - SAN
1 stop11h 55mSouthwest
mar. 9/307:45 amSAN - ITO
1 stop13h 25mSouthwest
Deal found 6/15$308
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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.
mar. 9/29:00 pmITO - SAN
2 stops14h 48mAlaska Airlines
mié. 9/109:00 amSAN - ITO
1 stop9h 59mAlaska Airlines
Deal found 6/16$318
This Hawaiian Airlines deal was found by Cheapflights users on 6/18. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/306:00 amITO - SAN
1 stop7h 30mHawaiian Airlines
mié. 9/310:17 amSAN - ITO
1 stop10h 22mHawaiian Airlines
Deal found 6/18$394
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/237:00 pmITO - SAN
2 stops16h 38mDelta
sáb. 6/287:27 amSAN - ITO
2 stops17h 18mDelta
Deal found 6/16$764
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/27:00 pmITO - SAN
2 stops12h 12mUnited Airlines
dom. 7/610:54 amSAN - ITO
2 stops33h 44mUnited Airlines
Deal found 6/17$825
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/237:00 pmITO - SAN
2 stops10h 53mAmerican Airlines
mar. 9/308:15 amSAN - ITO
3 stops15h 15mAmerican Airlines
Deal found 6/16$1,197

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 junio 18, 2025.
Use the filters below to find and compare flights from Hilo to San Diego that are best for you.

Fly from

Hilo

Fly to

San Diego

Route

Depart

Return

Price

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

mar. 9/23

6:00 am-8:55 pm

1 stop11h 55m

San Diego

mar. 9/30

7:45 am-6:10 pm

1 stop13h 25m

$308

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

mar. 9/2

9:00 pm-2:48 pm

2 stops14h 48m

San Diego

mié. 9/10

9:00 am-3:59 pm

1 stop9h 59m

$318

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

sáb. 8/30

6:00 am-4:30 pm

1 stop7h 30m

San Diego

mié. 9/3

10:17 am-5:39 pm

1 stop10h 22m

$394

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

lun. 7/7

8:00 pm-2:40 pm

2 stops15h 40m

San Diego

jue. 7/10

7:30 am-9:45 pm

2 stops17h 15m

$764

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

mié. 7/2

7:00 pm-10:12 am

2 stops12h 12m

San Diego

dom. 7/6

10:54 am-5:38 pm

2 stops33h 44m

$825

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

mar. 9/23

7:00 pm-8:53 am

2 stops10h 53m

San Diego

mar. 9/30

8:15 am-8:30 pm

3 stops15h 15m

$1,197

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

lun. 7/21

9:00 pm-2:38 pm

2 stops14h 38m

$237

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

mié. 7/2

6:00 am-8:55 pm

1 stop11h 55m

$267

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

mar. 7/15

8:37 am-8:16 pm

2 stops32h 39m

$349

HiloSan Diego

ITO - SAN

ITOSAN

Hilo Intl

mar. 7/1

7:49 am-9:19 pm

1 stop10h 30m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 11 results
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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, August is the cheapest month in which you can book a flight from Hilo to San Diego (average of $286). Flying from Hilo to San Diego in March is currently the most expensive (average of $366). 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.

What is the cheapest time of day to fly from ITO to SAN?

Find hourly flight availability from Hilo to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Hilo to San Diego at noon. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the morning.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 junio 18, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Hilo to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,964 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,507 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,810 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $308. Other airlines that can offer you cheap pricing are Alaska Airlines, from $318, and Hawaiian Airlines, from $394. Southwest is 47% 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 $237. Users have also found prices from $267 and $349 on Southwest and United Airlines, 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, August is the cheapest month in which you can book a flight from Hilo to San Diego (average of $286). Flying from Hilo to San Diego in March is currently the most expensive (average of $366). 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 Hilo?

Book flights to Hilo if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado

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Alternative routes for Hilo to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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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 junio 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$220Average$511FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$348Average$584FlexibilityNo cancel feeOn-time63%

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