Cheap Flights to St. Helens , OR from CA $128

View CA $128 flight on Wed, Aug. 20, 2025Opens in a new window

Popular airlines to St. Helens

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to St. Helens?

Prices were available within the past 7 days and start at CA $128 for one-way flights and CA $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Sep. 4 - Tue, Sep. 9
DTW
Detroit
PDX
Portland
CA $251 Roundtrip, found 3 days ago
CA $251
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Sep. 4 from Detroit to Portland, returning Tue, Sep. 9, priced at CA $251 found 3 days ago
Delta
Wed, Aug. 20 - Tue, Aug. 26
BUF
Buffalo
PDX
Portland
CA $267 Roundtrip, found 3 days ago
CA $267
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Aug. 20 from Buffalo to Portland, returning Tue, Aug. 26, priced at CA $267 found 3 days ago
WestJet
Thu, Sep. 4 - Fri, Sep. 12
YYC
Calgary
PDX
Portland
CA $272 Roundtrip, found 2 days ago
CA $272
Roundtrip
found 2 days ago
Select WestJet flight, departing Thu, Sep. 4 from Calgary to Portland, returning Fri, Sep. 12, priced at CA $272 found 2 days ago
Air Canada
Wed, Sep. 3 - Mon, Sep. 8
YYC
Calgary
PDX
Portland
CA $273 Roundtrip, just found
CA $273
Roundtrip
just found
Select Air Canada flight, departing Wed, Sep. 3 from Calgary to Portland, returning Mon, Sep. 8, priced at CA $273 just found
United
Thu, Oct. 16 - Sun, Oct. 19
YYC
Calgary
PDX
Portland
CA $280 Roundtrip, found 2 days ago
CA $280
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct. 16 from Calgary to Portland, returning Sun, Oct. 19, priced at CA $280 found 2 days ago

Find the cheapest month to fly from Columbus (CMH) to Portland (PDX)

February is typically the cheapest month to fly

From CA $179 - CA $563 per traveller.

Graph displaying average flight prices per month

Expedia.ca gives you the best tools to secure great deals on flights to St. Helens. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to St. Helens. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to St. Helens.

Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your St. Helens flights with full confidence knowing that you've found the best deal online.

Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to St. Helens.

Looking to save even more? Get additional savings by bundling your St. Helens flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your St. Helens trip!

Frequently asked questions

What is the name of St. Helens' airport?
Book a flight to St. Helens and you'll be landing at Portland Intl. Airport (PDX).
How far is Portland Intl. Airport (PDX) from central St. Helens?
Portland Intl. Airport (PDX) is 32 kilometres from downtown St. Helens, so prepare yourself for a bit of a commute into the city.
What airport is best to fly into St. Helens?
Sitting 32 kilometres from the centre of town, Portland Intl. Airport (PDX) is your entry point to St. Helens.
How many airlines fly to St. Helens?
There are a total of 20 airlines connecting St. Helens with 60 airports across the world.
Which airlines fly to St. Helens?
Most often, travellers choose to fly with Alaska Airlines, Delta and Sun Country Airlines when heading off to St. Helens. The largest number of these flights come from Seattle, with Alaska Airlines flying this route the most.
How many nonstop flights are there to St. Helens?
Arranging an exciting St. Helens adventure is child's play when there are 1,254 nonstop flights each week to get you there.
Where are the most popular flights to St. Helens departing from?
A large number of flights to St. Helens depart from Seattle, Los Angeles and Phoenix airports.
How long is the flight to St. Helens Airport?
Where you depart from determines how much of the in-flight entertainment you'll get to enjoy. From Seattle to St. Helens, the average flight time is 57 minutes. From Los Angeles it's around 2 hours and 33 minutes, and from Phoenix it's 2 hours and 52 minutes.
How to book the cheapest flight to St. Helens?
We all know those fortunate travellers who somehow land wonderfully cheap fares every time they fly. Eager to know how to do it for your St. Helens vacation? Don't wait until the last possible moment to secure your flight. Also, do some online research and compare your options. If your destination has a few airports, you may be able to pick up a great price by flying into one that's farther away. And finally, don't forget that the early bird catches the worm. Familiarize yourself with airfare costs and have your credit card ready to secure your ticket as soon as you spot an unbeatable bargain. The best deals never last long.
Do you have any tips for my flight to St. Helens?
Depending on where you're coming from, your trip to St. Helens could be as easy as pie or it could go on forever. We've pulled together some handy tips that will help you start your next great adventure on the right foot. What to pack in your hand luggage:

  • The trick to having a worry-free travel experience is to be prepared. So, let's start with the basics: passport, travel documents, bank cards and medications. Next, bring on board items that'll help while away those hours, like some electronic devices or a good book. It's also smart to pack your chargers, a comfy neck pillow and a pair of headphones. And of course, be sure to pop in toiletry items like a toothbrush, lip balm and a clean T-shirt.

Do not pack the following items in your hand luggage:

  • Put all your full-sized bottles of hair gel and hairspray in your checked luggage. Any gels or liquids in your carry-on suitcase larger than 3.4 ounces (100 millilitres) won't be allowed on. Pointed or sharp objects, like your beloved Swiss Army knife, and products which are explosive or flammable, such as spray paint, flares and fireworks, are also restricted.

What to wear on a flight:

  • Comfort should be your number one priority when choosing what to wear during your flight. Loose clothing is a smart choice, as are roomy, closed-toe shoes.
  • Most of us have heard about deep vein thrombosis (DVT), a blood clot condition caused by long periods of sitting. To lower your risk on board, drink plenty of water, consider wearing compression tights or socks and move your lower limbs often.

How to get through airport security fast when flying to St. Helens?
As savvy travellers know, the secret is to be prepared before you arrive at security. That way, you'll be hopping onto that plane to St. Helens in the blink of an eye. Follow these helpful tips and get your vacation off to a flying start:

  • Be sure to keep your travel documents and ID at hand. They'll be the first things you'll be asked for by security.
  • The X-ray machine is up next. Remove anything metal on you that is likely to beep. This includes things like earphones or headphones, as well as heavy jackets or coats. They'll all need to go on the X-ray conveyor belt.
  • For just a few moments, you'll have to unplug from the digital world. Your laptop, phone and any other electronic gadgets will also need to be sent through the scanner.
  • Travelling with a new cologne or perfume? As long as the volume is no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-close bag, you're permitted to bring it with you in your carry-on luggage.
  • Slip-on shoes are a good footwear choice as you're less likely to be required to remove them when passing through security. Boots and other heavy-style shoes are often subjected to extra screening.
  • Sharp items such as knives and scissors can't be taken on board. They'll be confiscated at security, so put them in your checked bags.

Flights to St. Helens information
Destination airport
Portland Intl.
Destination airport IATA code
PDX
Destination city name
Portland
Roundtrip price
CA $251

Trending flights to St. Helens

Prices were available within the past 7 days and start at CA $128 for one-way flights and CA $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Sep. 9 - Tue, Sep. 9
YVR
Vancouver
PDX
Portland
CA $268 Roundtrip, found 1 day ago
CA $268
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep. 9 from Vancouver to Portland, returning Tue, Sep. 9, priced at CA $268 found 1 day ago
*Available to Expedia members.