$715 Cheap flights to Portland
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Portland departing on 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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What is the cheapest month to fly to Portland?
The cheapest month to fly to Portland from Australia is in October. Flight prices, which tend to average around $1,571, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland during the month of October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,574.
What is the cheapest day to depart on your flight to Portland?
On average, the least expensive day to fly to Portland from Australia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,429. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Australia because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $1,845.
What is the cheapest time of day to depart on your flight to Portland?
Flying to Portland from Australia at midday is the least expensive time of day to depart. momondo users have found prices as low as $1,330 when looking at flights departing at midday. Flights to Portland are more costly in the evening, with an average ticket price of $2,620. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Portland?
You are more likely to see cheaper flights to Portland from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $1,765 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Australia for as low as $1,521 on momondo.
Cheapest flights to Portland
Find the cheapest flights to Portland from your nearest city or airport
| CHEAPEST MONTH TO FLY TO PORTLAND FROM SYDNEY | October | 11% cheaper | Flying from Sydney to Portland costs on average just $1,571 in October |
| MOST EXPENSIVE MONTH TO FLY TO PORTLAND FROM SYDNEY | December | 29% more expensive | It costs about $2,291 for flights to Portland from Sydney in December |
| MOST POPULAR MONTH TO FLY TO PORTLAND FROM SYDNEY | May | 657% more users visited | More momondo users searched in flights to Portland from Sydney in May than any other month |
Cheap Portland flight deals and tips
Summary info about Portland flight prices, duration and airlines
Best One-Way Price | $715 |
|---|---|
Best Round-Trip Price | $1,504 |
Fastest flight time | 18h 51m |
Popular in | December |
Frequently asked questions about flying to Portland
How far in advance should I book a flight to Portland?
In general, most travellers find the cheapest time to book a flight to Portland is about 38 days prior to their departure date, when tickets on average are $1,765. Keep in mind that you might be able to find cheaper flights to Portland at any time. In fact, our users found flights for as low as $800 in the past 72 hours.
When did momondo last update prices for flights to Portland Airport?
Prices for flights to Portland Airport are updated daily.
How many operators does momondo search for flights to Portland Airport?
The number of operators available for flights to Portland Airport is 9 as of July 2025.
How old do you have to be to fly to Portland Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal to Portland?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland.
Can I find flights to Portland with flexible booking policies on momondo?
Yes. All flights to Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights to Portland?
Once all potential Portland flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.
I’m not ready to book a flight to Portland right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.