$21 Cheap Flights to Tras-os-Montes

View $21 flight on Wed, May 6, 2026Opens in a new window

Popular airlines

  • American Airlines

  • United

  • Southwest Airlines

  • Delta

  • Frontier Airlines

  • JetBlue Airways

  • Alaska Airlines

How much is the cheapest flight to Tras-os-Montes?

Prices were available within the past 7 days and start at $21 for one-way flights and $41 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Tue, May 5 - Tue, May 5
MAD
Madrid
OPO
Porto
$41 Roundtrip, found 15 hours ago
$41
Roundtrip
found 15 hours ago
Select Ryanair flight, departing Tue, May 5 from Madrid to Porto, returning Tue, May 5, priced at $41 found 15 hours ago
Iberia
Wed, Oct 21 - Sat, Oct 24
MAD
Madrid
OPO
Porto
$64 Roundtrip, found 6 days ago
$64
Roundtrip
found 6 days ago
Select Iberia flight, departing Wed, Oct 21 from Madrid to Porto, returning Sat, Oct 24, priced at $64 found 6 days ago
Air Europa
Sun, May 24 - Tue, May 26
MAD
Madrid
OPO
Porto
$71 Roundtrip, just found
$71
Roundtrip
just found
Select Air Europa flight, departing Sun, May 24 from Madrid to Porto, returning Tue, May 26, priced at $71 just found
TAP Portugal
Mon, Sep 28 - Thu, Oct 1
MAD
Madrid
OPO
Porto
$93 Roundtrip, found 2 hours ago
$93
Roundtrip
found 2 hours ago
Select TAP Portugal flight, departing Mon, Sep 28 from Madrid to Porto, returning Thu, Oct 1, priced at $93 found 2 hours ago
Swiss International Air Lines
Thu, Oct 22 - Tue, Nov 3
MAD
Madrid
OPO
Porto
$143 Roundtrip, found 3 days ago
$143
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Thu, Oct 22 from Madrid to Porto, returning Tue, Nov 3, priced at $143 found 3 days ago

Frequently asked questions

What month is the cheapest to fly to Tras-os-Montes?
May is the cheapest month to fly to Tras-os-Montes. There's less demand then, so you're likely to snag a great deal. Planning your trip outside of school breaks and major holidays can also help you save.
Which US cities fly direct to Tras-os-Montes?
Take your pick of 8 US cities with direct flights to Tras-os-Montes. While booking on Expedia, check the "Direct flights only" filter to find nonstop itineraries. Fly to Tras-os-Montes from any of these leading cities:

  • Boston
  • Newark
  • Washington
  • New York
  • Miami

How to find a cheap flight to Tras-os-Montes?
Book in advance to score cheap flights to Tras-os-Montes. Also, consider traveling during off-season months like December and January. If you jet off on a Thursday, you can save 16% on average compared to departing on a Sunday.* Save time searching every day and set up a price alert on the Expedia app. We'll send you a notification when fares drop.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Tras-os-Montes?
You can find good deals on last-minute flights to Tras-os-Montes, especially if your plans aren't set in stone. Think about jetting out of a different hub, changing your trip dates or choosing an alternative airline to get a cheap flight to Tras-os-Montes.
How far in advance should I book a flight to Tras-os-Montes?
Secure your flight to Tras-os-Montes two to four months ahead if you're coming in from an international destination. For domestic travel, the recommendation is around 28 days in advance. Better deals and a greater choice of departure dates, schedules and seating options are just some of the perks of booking early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Tras-os-Montes?
Sundays are generally the best day to book a cheap flight to Tras-os-Montes, with savings of around 8% on average compared to Fridays. If you decide to buy tickets on a Friday, be ready to pay a higher price as this is typically the most expensive day.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Tras-os-Montes?
You can take your pick of two reputable airlines with flights to Tras-os-Montes. Pack your suitcase and book your fare with either of these:

  • TAP Portugal - 30 flights to Tras-os-Montes each month, including 30 flights to Dr. Francisco de Sa Carneiro Airport (OPO) per month.
  • United Airlines - 30 flights to Tras-os-Montes each month, including 30 flights to Dr. Francisco de Sa Carneiro Airport (OPO) per month.

Can I save money by booking a Tras-os-Montes trip package?
Book a Tras-os-Montes flight and hotel package deal on Expedia, and you could enjoy significant savings. It's easy to bundle your flights and accommodations, and you can also add car rentals and activities to create your own personalized Tras-os-Montes vacation. Plus, nothing beats the convenience of booking everything in the same place.
Can I change or cancel my flight to Tras-os-Montes?
You can typically cancel or change your flight to Tras-os-Montes within 24 hours of booking. However, be mindful that some fares are non-refundable. In those cases, you may be issued a credit toward future travel in place of a direct refund. Be sure to check the airline's terms of service in your itinerary for specific details. You can use Expedia's "No cancel fee" or "Changes included" filters during your search to secure cheap flights to Tras-os-Montes with flexible change policies. To learn more, head to our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

 

Travel information

Destination airport
Dr. Francisco de Sa Carneiro
Destination airport IATA code
OPO
Destination city name
Porto
Roundtrip price
$40

Trending flights to Tras-os-Montes

Prices were available within the past 7 days and start at $21 for one-way flights and $41 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Europa
Fri, Nov 13 - Fri, Nov 20
JFK
New York
OPO
Porto
$457 Roundtrip, found 7 hours ago
$457
Roundtrip
found 7 hours ago
Select Air Europa flight, departing Fri, Nov 13 from New York to Porto, returning Fri, Nov 20, priced at $457 found 7 hours ago