Question 1

How long does it take to travel from Portland to Ontario?

Accepted Answer

A one-way nonstop (direct) flight between Portland and Ontario takes around 2.2 hours.

Question 2

What is the flight distance between Portland and Ontario?

Accepted Answer

The flight distance between Portland and Ontario is 1352 km.

Question 3

What airlines offer nonstop (direct) flights between Portland and Ontario?

Accepted Answer

Several carriers operate flights between Portland and Ontario. Airlines offering nonstop (direct) flights include Frontier Airlines, Alaska Airlines.

Question 4

What are the most popular routes to and from Portland?

Accepted Answer

Travelers frequently search for route combinations, such as Portland and London, San Francisco, Dublin, Phoenix, Washington, D.C., Atlanta, Denver, Las Vegas, Los Angeles, St. Louis, Barcelona, New York, Austin, San Diego, Chicago, Bangkok, Tallinn, Minneapolis, Santa Ana, Philadelphia.

Question 5

What are the most popular routes to and from Ontario?

Accepted Answer

Travelers frequently search for route combinations, such as Ontario and London, New York, Bangkok, San Francisco, Denver, Sacramento, Taipei, Manila, Toronto, Calgary, Seattle, Las Vegas, San Jose, Orlando, Houston, Macau, Los Angeles, Washington, D.C., Manchester, Detroit.

Question 6

What airports are near Portland?

Accepted Answer

The main airport in Portland is Portland International. It is also served by Seattle–Tacoma International, Portland International, Eugene, Roberts Field, Kenmore Air Harbor Seaplane Base.

Question 7

What airports are near Ontario?

Accepted Answer

The main airport in Ontario is Ontario International. It is also served by Tijuana International, San Diego International, Ontario International, John Wayne, Palm Springs International, Hollywood Burbank, Long Beach, Santa Barbara Municipal, Meadows Field, Imperial County.

Question 8

Is it possible to combine flights, buses, and trains in one itinerary when traveling between Portland and Ontario?

Accepted Answer

Yes, it's possible to combine different modes of transport between Portland and Ontario thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Portland and Ontario can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Question 9

What is Virtual Interlining and how do I use it?

Accepted Answer

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Question 10

Which airlines fly between Portland and Ontario?

Accepted Answer

Currently, you can fly between Portland and Ontario with Frontier Airlines, Alaska Airlines, Spirit Airlines, United Airlines, Allegiant Air.

Question 11

When's the best time to travel between Portland and Ontario?

Accepted Answer

If you don’t have specific dates for your trip between Portland and Ontario, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Question 12

What flights operate between Portland and Ontario?

Accepted Answer

Traveling between Portland and Ontario, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What's more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

Question 13

How many airports are there near Portland?

Accepted Answer

There are a number of airports in and around Portland. The main one is Portland International and other nearby airports include Seattle–Tacoma International, Portland International, Eugene, Roberts Field, Kenmore Air Harbor Seaplane Base

Question 14

How many airports are there near Ontario?

Accepted Answer

There are a number of airports in and around Ontario. The main one is Ontario International and other nearby airports include Tijuana International, San Diego International, Ontario International, John Wayne, Palm Springs International, Hollywood Burbank, Long Beach, Santa Barbara Municipal, Meadows Field, Imperial County.

Question 15

What time do nonstop (direct) flights between Portland and Ontario depart?

Accepted Answer

This depends on the airline's flight schedule. You can easily select your preferred departure time when you search on our website or mobile app. Choose the time of day you wish to depart from Portland, such as morning, afternoon, evening, or night, or select the exact hours for departure.

Question 16

What time do nonstop (direct) flights between Portland and Ontario arrive?

Accepted Answer

This depends on the airline's flight schedule. You can easily select your preferred arrival time when you search on our website or mobile app. Choose the time of day you wish to arrive at Ontario, such as morning, afternoon, evening, or night, or select the exact hours for arrival.

Question 17

What time do flights between Portland and Ontario depart?

Accepted Answer

This depends on the airline's flight schedule. You can easily select your preferred departure time when you search on our website or mobile app. Choose the time of day you wish to depart from Portland, such as morning, afternoon, evening, or night, or select the exact hours for departure.

Question 18

What time do flights between Portland and Ontario arrive?

Accepted Answer

This depends on the airline's flight schedule. You can easily select your preferred arrival time when you search on our website or mobile app. Choose the time of day you wish to arrive at Ontario, such as morning, afternoon, evening, or night, or select the exact hours for arrival.

Cheapest one-way trip	£27
Cheapest round-trip	£50
Average round-trip	£86
Nonstop flights in April	£19 – £301
Most popular airline	Frontier Airlines

Airline	Mon 15.04	Tue 16.04	Wed 17.04	Thu 18.04	Fri 19.04	Sat 20.04	Sun 21.04
Alaska Airlines	3	2	2	3	3	2	3
Frontier Airlines	1	1	1	1	1	1	1

Airline	Mon 22.04	Tue 23.04	Wed 24.04	Thu 25.04	Fri 26.04	Sat 27.04	Sun 28.04
Alaska Airlines	3	2	2	3	3	2	3
Frontier Airlines	1	1	1	1	1	1	1

Airline	Mon 29.04	Tue 30.04	Wed 01.05	Thu 02.05	Fri 03.05	Sat 04.05	Sun 05.05
Alaska Airlines	3	2	2	3	3	2	3
Frontier Airlines	1	1	1	1	1	1	1

Airline	Mon 06.05	Tue 07.05	Wed 08.05	Thu 09.05	Fri 10.05	Sat 11.05	Sun 12.05
Alaska Airlines	3	2	2	3	3	2	3
Frontier Airlines	1	1	1	1	1	---	---

Cheap flights from Portland, OR to Ontario, CA

Flights starting at £19. Choose between Frontier Airlines, Alaska Airlines, or Spirit Airlines to find the best price.

Tips to know when travelling to Ontario

Cheapest one-way trip

Cheapest round-trip

Average round-trip

Nonstop flights in April

Most popular airline

Search by stops

Search by carrier

Search by price

Search by departure date

One-way trips

Round trips

Looking for a different city?

Weekly direct flights

Weekly direct flights for Mon 15.04 - Sun 21.04

Weekly direct flights for Mon 22.04 - Sun 28.04

Weekly direct flights for Mon 29.04 - Sun 05.05

Weekly direct flights for Mon 06.05 - Sun 12.05

Check-in for a flight from Portland to Ontario

Ontario travel tips

Weather in Ontario

Average Weather

14 day forecast

Frequently asked questions

Explore alternative trips

Flights from Portland

Flights to Ontario

Popular routes

The nearest countries with flights to Ontario

Other destination countries from Portland

Airports near Portland

Airports near Ontario

Kiwi.com: the best free travel app for Android and iPhone

Company

Platform

Help & support

Features

Discover

Name	Carrier code	IATA Code	Passport needed during booking	Online check-in available
Frontier Airlines	FFT	F9	No	Opens 24 days before flight Closes 1 hours before flight
Alaska Airlines	ASA	AS	No	Opens 24 days before flight Closes 1 hours before flight
Spirit Airlines	NKS	NK	No	Opens 24 days before flight Closes 1 hours before flight
United Airlines	UAL	UA	Yes	No
Allegiant Air	AAY	G4	No	Opens 24 days before flight Closes 1 hours before flight

1) Watch how cooks prepare your food before it comes at your table at Benihana in Ontario	There is no time to be bored at Benihana at 3760 Inland Empire Boulevard in Ontario. After making an order, watch how talented chefs make your food right before your eyes. The menu is also great; choose from sushi rolls, steaks, agedashi tofu (for vegans), and more.
2) Have fun at the LOL Kids Club like a child in Ontario	If at least once you had regretted that all ball pits and things to climb on are only for children, the LOL Kids Club in Ontario is a perfect place for you. All the tons of ball pits, things to climb on, jump off of, swing on, or run around are for adults here! Have fun!
3) Enjoy artisan pasta at Rossa's Cucina in Ontario	If you love Italian food, Rossa's Cucina at 425 N Vineyard Avenue in Ontario is a must-visit. They use fresh, wild-caught fish, artisan pasta, and other top quality ingredients. The wine menu is also excellent; ask the waiter to recommend you a glass of suitable wine to your dish.

Month	Average monthly max temperature	Average monthly min temperature
January	18°C	7°C
February	18°C	7°C
March	20°C	8°C
April	23°C	10°C
May	25°C	13°C
June	29°C	16°C
July	33°C	19°C
August	33°C	20°C
September	32°C	18°C
October	27°C	15°C
November	22°C	10°C
December	17°C	7°C