Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to United Kingdom as you normally would.
Travelers have found it’s best to book a flight 61 days in advance to save up to 83% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portland, Maine to United Kingdom 1-2 weeks in advance for as low as $597, or $762 for flights within the next 24 hours.
||$593||$808||No cancel fee||69%|
||$721||$1,077||No cancel fee||N/A|
||$771||$1,019||No cancel fee||71%|