£483 Cheap Flights to Casco Bay Islands

View £483 flight on Mon, 6 Oct 2025Opens in a new window

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Cheap round-trip flights to Casco Bay Islands

Prices were available within the past 7 days and start at £483 for one-way flights and £444 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Mon, 8 Sep - Mon, 22 Sep
LHR
London
PWM
Portland
£444 Return, found 1 day ago
£444
Return
found 1 day ago
Select JetBlue Airways flight, departing Mon, 8 Sep from London to Portland, returning Mon, 22 Sep, priced at £444 found 1 day ago
British Airways
Wed, 14 May - Sun, 18 May
LGW
London
PWM
Portland
£526 Return, found 1 day ago
£526
Return
found 1 day ago
Select British Airways flight, departing Wed, 14 May from London to Portland, returning Sun, 18 May, priced at £526 found 1 day ago
Austrian Airlines
Tue, 3 Feb - Wed, 18 Feb
LHR
London
PWM
Portland
£560 Return, found 4 days ago
£560
Return
found 4 days ago
Select Austrian Airlines flight, departing Tue, 3 Feb from London to Portland, returning Wed, 18 Feb, priced at £560 found 4 days ago
Virgin Atlantic
Wed, 7 May - Wed, 14 May
LHR
London
PWM
Portland
£567 Return, found 13 hours ago
£567
Return
found 13 hours ago
Select Virgin Atlantic flight, departing Wed, 7 May from London to Portland, returning Wed, 14 May, priced at £567 found 13 hours ago
Delta
Wed, 7 May - Tue, 20 May
LHR
London
PWM
Portland
£567 Return, found 2 days ago
£567
Return
found 2 days ago
Select Delta flight, departing Wed, 7 May from London to Portland, returning Tue, 20 May, priced at £567 found 2 days ago

Expedia flights to Casco Bay Islands

Searching for cheap flights to Casco Bay Islands? No travel company presents more choices than Expedia if you're looking to compare flights to Casco Bay Islands. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Maine. Expedia provides the cheapest flights to many destinations in Maine and you may find even greater savings if you combine your flight with a hotel stay in Casco Bay Islands.

Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Casco Bay Islands for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Casco Bay Islands flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price.

Frequently asked questions

How do I find cheap flights to Casco Bay Islands that have flexible change policies?
We understand that travel schedules can change from one day to the next, so choosing a flexible ticket with Expedia is a wise idea. Simply check the “No change fee” box below the “Flexible change policies” filter. Your low-priced, flexible flight to Casco Bay Islands is only a few clicks away.
Which airlines fly to Casco Bay Islands?
Pack your suitcase and take your pick of these well-known airlines that offer flights into or near Casco Bay Islands:

  • United Airlines - 316 flights to or near Casco Bay Islands each month, including 316 flights to Portland Intl. Jetport Airport (PWM) per month.
  • Delta Air Lines - 294 flights to or near Casco Bay Islands each month, including 294 flights to Portland Intl. Jetport Airport (PWM) per month.
  • American Airlines - 290 flights to or near Casco Bay Islands each month, including 290 flights to Portland Intl. Jetport Airport (PWM) per month.

How can I find cheap tickets to Casco Bay Islands?
An effective strategy for walking away with cheap tickets is to be flexible with your dates. Begin with searching for your flight to Casco Bay Islands, then click on the “flexible dates” box to see prices for nearby days. Another good tip? Book ahead of time. To give you an idea of fares, £444 was the lowest price for a flight to Casco Bay Islands in the last seven days.
How much is a flight to Casco Bay Islands?
If you were jetting one way from London (LHR), you could’ve snapped up a bargain fare for just £483 in the last seven days. Round-trip journeys to Casco Bay Islands ranged from only £444 to £567 over the same period.
What are the most popular airports to fly into in Casco Bay Islands?
Portland Intl. Jetport Airport (PWM) is the main jumping-off point for those eager to visit Casco Bay Islands. Roughly 1,140 flights per month land at this airport.
When is the cheapest time to fly to Casco Bay Islands?
Jet off early on in the week to land a bargain fare to Casco Bay Islands. Tuesday is generally the most cost-effective day to depart, with Monday a close second. Saturday typically has the highest ticket prices. This is because lots of people prefer to start their getaway on a weekend.
How much is a plane ticket to Casco Bay Islands?
In the last seven days, flights to Casco Bay Islands varied between £444 and £567. Prices generally depend on the time of departure, airline, cabin class and when you make your booking.
What months are the cheapest to book a flight to Casco Bay Islands?
February is the cheapest month to lock in a seat for your Casco Bay Islands trip. Tickets are priciest during the month of December, so steer clear of this time if you can.
Flights to Casco Bay Islands information
Destination airport
Portland Intl. Jetport
Destination airport IATA code
PWM
Destination city name
Portland
Return price
£443

Trending flights to Casco Bay Islands

Prices were available within the past 7 days and start at £483 for one-way flights and £444 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Mon, 8 Sep - Mon, 22 Sep
LHR
London
PWM
Portland
£444 Return, found 1 day ago
£444
Return
found 1 day ago
Select JetBlue Airways flight, departing Mon, 8 Sep from London to Portland, returning Mon, 22 Sep, priced at £444 found 1 day ago
*Available to Expedia members.