Question 1

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

Accepted Answer

Cheapflights users have booked flights from Glasgow to Portland round-trip from £571. Other airlines that can offer you cheap pricing are Lufthansa, from £645, and Finnair, from £651. Icelandair is priced at 16% lower than the current average price of a flight leaving 3 months from now.

Question 2

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

Accepted Answer

The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £544. However, be on the lookout for offers from Lufthansa and British Airways, as they are both options that can get you from Glasgow to Portland for a low price.

Question 3

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

Accepted Answer

The price you pay for your flight from Glasgow to Portland may vary depending on when you book. For the best chance of a lower fare, look to book 8 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 4

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Glasgow to Portland (average of £736). Flying from Glasgow to Portland in July is currently the most expensive (average of £1,048). 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.

Question 5

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

Accepted Answer

Travellers seeking maximum savings on their Glasgow to Portland flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in Portland ranges from 18.0 - 142.0 inches per month. November is typically the wettest month, when rainfall can reach 142.0 mm. July is typically the driest time to visit Portland when rainfall is around 18.0 mm.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to Portland, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Question 8

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

Accepted Answer

Consider Air France, Finnair or British Airways when booking your flight. These represent the most popular airlines when flying from Glasgow to Portland.

Question 9

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

Accepted Answer

Friday flights are generally found to be more expensive for flights from Glasgow to Portland. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Portland.

Question 10

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

Accepted Answer

Find a great deal and save up to 158% by booking at least 9 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Glasgow to Portland within the next two weeks, with the cheapest ticket starting at £495.

Question 11

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

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, November can be a great choice for travel to Portland. Flights to Portland from Glasgow in November are about £687 on average during November, but can be found for as low as £537.

Question 12

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

Accepted Answer

Unlike at midday, when flights are generally more expensive, you can save up to 14% on flights from Glasgow to Portland by exploring options for tickets in the afternoon.

Question 13

What airport do you fly into for flights to Portland from Glasgow?

Accepted Answer

Located just 6.0 mi from the city center, Portland is the airport most travelers will use when flying to Portland from Glasgow. Booking flights from Glasgow to Portland (PDX) should be relatively easy as there are 0 daily inbound flights from Glasgow from 7 different airlines.

Question 14

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

Accepted Answer

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

Question 15

How can I find direct flights from Glasgow to Portland?

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

How does Cheapflights help users find flights from Glasgow to Portland?

Accepted Answer

Cheapflights helps you search for flights from Glasgow to Portland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Question 18

Why should you use Cheapflights to find cheap flight tickets from Glasgow to Portland?

Accepted Answer

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Glasgow to Portland for you. Better yet — we are completely free to use.

Question 19

Can Cheapflights find flights from Glasgow to Portland with no change fees?

Accepted Answer

Yes, we can. To see specific flights from Glasgow to Portland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 20

Can Cheapflights notify me if prices for flights from Glasgow to Portland become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from Glasgow to Portland on Cheapflights with our Price Alert feature and get notified when better prices are available.

Round-trip from	£503
Popular in	August
Cheapest in	November
Average price	£760

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest£468	Average£726	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Finnair	Cheapest£489	Average£689	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
British Airways	Cheapest£490	Average£686	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Air France	Cheapest£533	Average£573	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Icelandair	Cheapest£538	Average£686	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
KLM	Cheapest£554	Average£700	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£588	Average£718	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Cheap flights from Glasgow to Portland from £503

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Glasgow to Portland are usually found in November or May, booked 8 days in advance, depart on a Tuesday or Sunday and return on a Monday

Cheap flight deals from Glasgow to Portland

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Cheapest flights from Glasgow to PortlandExplore the most affordable flight options available from Glasgow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.

Explore the most affordable flight options available from Glasgow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.

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Best time to book a flight from Glasgow to Portland

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Glasgow to Portland. Price data was last updated on 27 June 2025.

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

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

Find hourly flight availability from Glasgow to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.

Reviews of airlines servicing Portland

See what other customers who have flown with Delta, KLM, andFinnair from Glasgow to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Glasgow to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Portland from Glasgow?

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

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

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

How can I find direct flights from Glasgow to Portland?

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

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

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Alternative routes for Glasgow to Portland

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Top 7 airlines flying from Glasgow to Portland

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How does Cheapflights help users find flights from Glasgow to Portland?

Why should you use Cheapflights to find cheap flight tickets from Glasgow to Portland?

Can Cheapflights find flights from Glasgow to Portland with no change fees?

Can Cheapflights notify me if prices for flights from Glasgow to Portland become cheaper?

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Cheapest flights from Glasgow to Portland
Explore the most affordable flight options available from Glasgow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.