What are the cheapest airlines flying from Portland to Hilo round-trip?

Flying on Southwest is currently your cheapest option to Hilo, with prices starting at $511. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and Hawaiian Airlines, with the lowest prices starting at $581 and $653, respectively. Southwest is priced at 27% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Portland to Hilo one-way?

The cheapest airlines for a one-way flight from Portland to Hilo are Alaska Airlines ($304), Delta ($397), and United Airlines ($506).

What is the cheapest day to fly from Portland to Hilo?

Travelers seeking maximum savings on their Portland to Hilo flight should consider departing on Wednesday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Portland to Hilo?

Before booking your flight from Portland to Hilo check out the most popular airlines for this route: Alaska Airlines, Hawaiian Airlines or Southwest.

What is the cheapest day to fly round-trip from Portland to Hilo?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 32% on the overall cost on flights from Portland to Hilo.

How far in advance should I book a flight from Portland to Hilo?

To save up to 22% on this flight, we recommend booking at least 22 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portland to Hilo from $521 1-2 weeks out and tickets from $521 for flights departing within the next 72 hours.

What is the cheapest month to fly from Portland to Hilo?

Flights from Portland to Hilo lean towards being more expensive in March. Prices are generally better when you fly from Portland to Hilo in October, with the cheapest ticket starting at $399.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Hilo as you normally would.

Most accurate provider : When it comes to deals on Portland-Hilo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Hilo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Hilo flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Portland-Hilo 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 Portland-Hilo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Portland to Hilo that include hotel bookings?

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

How can I find direct flights from Portland to Hilo?

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

Can I find deals for business class flights from Portland to Hilo?

Yes. Cheapflights offers flight deals from Portland to Hilo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$304+ Flights from Portland to Hilo

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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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Portland to Hilo Intl are usually found in October or January, booked 82 days in advance, depart on a Wednesday or Sunday and return on a Thursday

Cheap flight deals from Portland to Hilo

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$511 (Southwest)
One-way from	$304 (Alaska Airlines)
Popular in	March
Cheapest in	October
Average price	$1,047

Provider with most accurate pricing for Portland-Hilo Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Portland-Hilo Intl flights.

Search Deals

From Portland to Hilo Intl

Search Deals

One-way flight from Portland to Hilo Intl

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($74 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

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Find flight deals from Portland to Hilo

Cheapest flights from Portland to Hilo
Explore the most affordable flight options available from Portland to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

Mon 3/319:05 amPDX - ITO

2 stops14h 10mSouthwest

Tue 4/11:00 pmITO - PDX

2 stops16h 10mSouthwest

Deal found 3/26

$561

Thu 5/85:40 pmPDX - ITO

1 stop16h 20mAlaska Airlines

Thu 5/158:22 amITO - PDX

1 stop18h 58mAlaska Airlines

Deal found 3/26

$581

Sat 4/268:05 amPDX - ITO

1 stop8h 11mHawaiian Airlines

Mon 5/55:35 pmITO - PDX

1 stop9h 45mHawaiian Airlines

Deal found 3/26

$653

Wed 6/189:00 amPDX - ITO

2 stops16h 15mDelta

Sat 7/56:45 pmITO - PDX

2 stops15h 30mDelta

Deal found 3/26

$773

Wed 8/205:30 amPDX - ITO

2 stops12h 48mUnited Airlines

Wed 8/278:39 amITO - PDX

2 stops11h 12mUnited Airlines

Deal found 3/26

$1,024

Sun 4/205:05 amPDX - ITO

2 stops15h 56mMultiple Airlines

Sun 4/275:00 pmITO - PDX

2 stops14h 38mMultiple Airlines

Deal found 3/26

$1,091

Best flights from Portland to Hilo
Discover carefully curated flight deals from Portland to Hilo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2025.

Fri 4/2510:20 amPDX - ITO

2 stops10h 50mSouthwest

Fri 5/28:05 amITO - PDX

2 stops11h 10mSouthwest

Deal found 3/27

$511

Thu 5/85:40 pmPDX - ITO

1 stop16h 20mAlaska Airlines

Thu 5/158:22 amITO - PDX

1 stop18h 58mAlaska Airlines

Deal found 3/26

$581

Sat 4/268:05 amPDX - ITO

1 stop8h 11mHawaiian Airlines

Mon 5/55:35 pmITO - PDX

1 stop9h 45mHawaiian Airlines

Deal found 3/26

$653

Wed 6/189:00 amPDX - ITO

2 stops16h 15mDelta

Sat 7/56:45 pmITO - PDX

2 stops15h 30mDelta

Deal found 3/26

$773

Wed 8/205:30 amPDX - ITO

2 stops12h 48mUnited Airlines

Wed 8/278:39 amITO - PDX

2 stops11h 12mUnited Airlines

Deal found 3/26

$1,024

Sun 4/205:05 amPDX - ITO

2 stops15h 56mMultiple Airlines

Sun 4/275:00 pmITO - PDX

2 stops14h 38mMultiple Airlines

Deal found 3/26

$1,091

Last-minute flights from Portland to Hilo
Discover last-minute flight deals from Portland to Hilo. Data last updated March 27, 2025 and is based on user searches.

Wed 4/212:59 amPDX - ITO

2 stops19h 01mDelta

Tue 4/87:55 pmITO - PDX

2 stops13h 03mDelta

Deal found 3/27

$854

Thu 4/35:50 amPDX - ITO

2 stops11h 50mSouthwest

Tue 4/86:00 amITO - PDX

2 stops14h 05mSouthwest

Deal found 3/27

$526

Thu 4/39:05 amPDX - ITO

1 stop11h 55mAlaska Airlines

Tue 4/86:00 amITO - PDX

2 stops11h 59mAlaska Airlines

Deal found 3/27

$801

Sun 4/205:05 amPDX - ITO

2 stops15h 56mMultiple Airlines

Sun 4/275:00 pmITO - PDX

2 stops14h 38mMultiple Airlines

Deal found 3/26

$1,091

Fri 4/2510:20 amPDX - ITO

2 stops10h 50mSouthwest

Fri 5/28:05 amITO - PDX

2 stops11h 10mSouthwest

Deal found 3/27

$511

Sat 4/268:05 amPDX - ITO

1 stop8h 11mHawaiian Airlines

Mon 5/55:35 pmITO - PDX

1 stop9h 45mHawaiian Airlines

Deal found 3/26

$653

Sat 4/268:05 amPDX - ITO

1 stop9h 31mAlaska Airlines

Mon 5/56:30 pmITO - PDX

2 stops11h 27mAlaska Airlines

Deal found 3/26

$667

One-way flights from Portland to Hilo
Search for one-way flight options from Portland to Hilo. Find affordable one-way fares based on user searches. Data last updated March 27, 2025.

Fri 5/95:40 pmPDX - ITO

1 stop22h 36mAlaska Airlines

Deal found 3/26

$304

Sun 4/1312:59 amPDX - ITO

2 stops19h 01mDelta

Deal found 3/26

$397

Mon 4/141:45 pmPDX - ITO

3 stops31h 16mUnited Airlines

Deal found 3/26

$506

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Hilo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandHilo

PDX - ITO

PDXITO

Portland

Mon 3/31

9:05 am-8:15 pm

2 stops14h 10m

Hilo Intl

Tue 4/1

1:00 pm-8:10 am

2 stops16h 10m

$561

PortlandHilo

PDX - ITO

PDXITO

Portland

Thu 5/8

5:40 pm-7:00 am

1 stop16h 20m

Hilo Intl

Thu 5/15

8:22 am-6:20 am

1 stop18h 58m

$581

PortlandHilo

PDX - ITO

PDXITO

Portland

Sat 4/26

8:05 am-1:16 pm

1 stop8h 11m

Hilo Intl

Mon 5/5

5:35 pm-6:20 am

1 stop9h 45m

$653

PortlandHilo

PDX - ITO

PDXITO

Portland

Wed 6/18

9:00 am-10:15 pm

2 stops16h 15m

Hilo Intl

Sat 7/5

6:45 pm-1:15 pm

2 stops15h 30m

$773

PortlandHilo

PDX - ITO

PDXITO

Portland

Sun 4/20

5:05 am-6:01 pm

2 stops15h 56m

Hilo Intl

Sun 4/27

5:00 pm-10:38 am

2 stops14h 38m

$1,091

PortlandHilo

PDX - ITO

PDXITO

Portland

Fri 5/9

5:40 pm-1:16 pm

1 stop22h 36m

$304

PortlandHilo

PDX - ITO

PDXITO

Portland

Sun 4/13

12:59 am-5:00 pm

2 stops19h 01m

$397

PortlandHilo

PDX - ITO

PDXITO

Portland

Mon 4/14

1:45 pm-6:01 pm

3 stops31h 16m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Compare providers for flights from Portland to Hilo

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Hilo in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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 Portland-Hilo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Hilo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Hilo flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Portland-Hilo 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 Portland-Hilo 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 Portland to Hilo

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

How far ahead should I book a flight from Portland to Hilo?

Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Hilo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from Portland to Hilo (average of $330). Flying from Portland to Hilo in July is currently the most expensive (average of $768). 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.

Rainfall in Hilo by month

In terms of precipitation, rainfall in Hilo ranges from 7.4 - 15.5 inches per month. November is typically the wettest month, when rainfall can reach 15.5 in. June is typically the driest time to visit Hilo when rainfall is around 7.4 in.

Temperature in Hilo by month

If weather is an important factor for your trip to Hilo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 71.6 F).

Reviews of airlines servicing Hilo

See what other customers who have flown with Southwest, Alaska Airlines and Delta from Portland to Hilo have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.1

Very good

4,273 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines

8.0

Very good

9,792 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,895 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Hawaiian Airlines

7.9

Good

2,334 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,603 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

What are the cheapest airlines flying from Portland to Hilo round-trip?
Flying on Southwest is currently your cheapest option to Hilo, with prices starting at $511. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and Hawaiian Airlines, with the lowest prices starting at $581 and $653, respectively. Southwest is priced at 27% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Portland to Hilo one-way?
The cheapest airlines for a one-way flight from Portland to Hilo are Alaska Airlines ($304), Delta ($397), and United Airlines ($506).
Can I find deals for flights from Portland to Hilo that include hotel bookings?
Yes. In addition to deals on Portland to Hilo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Hilo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Hilo.
Can I find deals for business class flights from Portland to Hilo?
Yes. Cheapflights offers flight deals from Portland to Hilo 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 Portland to Hilo?
Currently, March is the cheapest month in which you can book a flight from Portland to Hilo (average of $330). Flying from Portland to Hilo in July is currently the most expensive (average of $768). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Portland to Hilo

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$346	Average$697	FlexibilityNo cancel fee	On-time75%
Southwest	Cheapest$427	Average$550	FlexibilityNo cancel fee	On-time63%
Hawaiian Airlines	Cheapest$540	Average$728	FlexibilityNo cancel fee	On-time85%

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$304+ Cheap flights from Portland to Hilo (PDX - ITO)

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Hilo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Portland to Hilo Intl are usually found in October or January, booked 82 days in advance, depart on a Wednesday or Sunday and return on a Thursday

Cheap flight deals from Portland to Hilo

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Hilo

Cheapest flights from Portland to HiloExplore the most affordable flight options available from Portland to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

Explore the most affordable flight options available from Portland to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Hilo that are best for you.

Compare providers for flights from Portland to Hilo

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 Portland to Hilo in March.

Best time to book a flight from Portland to Hilo

Have a flexible travel schedule? Discover the best time to fly to Hilo from Portland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Portland to Hilo

How far ahead should I book a flight from Portland to Hilo?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Hilo. Price data was last updated on March 21, 2025.

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

Rainfall in Hilo by month

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

Temperature in Hilo by month

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

Reviews of airlines servicing Hilo

Get insights into the airlines that provide service to Hilo. 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 Hilo. Reviews last updated March 27, 2025.

See what other customers who have flown with Southwest, Alaska Airlines and Delta from Portland to Hilo have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Portland to Hilo. 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 Portland to Hilo round-trip?

What are the cheapest airlines to fly from Portland to Hilo one-way?

Can I find deals for flights from Portland to Hilo that include hotel bookings?

How can I find direct flights from Portland to Hilo?

Can I find deals for business class flights from Portland to Hilo?

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

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.

Alternative routes for Portland to Hilo

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Portland to Hilo

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Cheapest flights from Portland to Hilo
Explore the most affordable flight options available from Portland to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.