$449 Cheap Flights from Hartford (BDL) to Porto (OPO)

View $449 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from Bradley Intl. Airport (BDL) to Porto Airport (OPO)

Cheap Flights from Hartford to Porto (BDL-OPO)

Prices were available within the past 7 days and start at $449 for one-way flights and $537 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Nov 4 - Wed, Nov 12
BDL
Hartford
OPO
Porto
$537 Roundtrip, found 2 days ago
$537
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 4 from Hartford to Porto, returning Wed, Nov 12, priced at $537 found 2 days ago
United
Wed, Nov 19 - Mon, Nov 24
BDL
Hartford
OPO
Porto
$538 Roundtrip, found 11 hours ago
$538
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Nov 19 from Hartford to Porto, returning Mon, Nov 24, priced at $538 found 11 hours ago
Delta
Tue, Nov 4 - Thu, Nov 13
BDL
Hartford
OPO
Porto
$541 Roundtrip, found 2 days ago
$541
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Nov 4 from Hartford to Porto, returning Thu, Nov 13, priced at $541 found 2 days ago
Delta
Wed, Nov 5 - Thu, Nov 13
BDL
Hartford
OPO
Porto
$547 Roundtrip, found 2 days ago
$547
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 5 from Hartford to Porto, returning Thu, Nov 13, priced at $547 found 2 days ago
Delta
Fri, Dec 5 - Sun, Dec 14
BDL
Hartford
OPO
Porto
$547 Roundtrip, found 1 day ago
$547
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Dec 5 from Hartford to Porto, returning Sun, Dec 14, priced at $547 found 1 day ago
Lufthansa
Sat, Nov 15 - Sat, Nov 22
BDL
Hartford
OPO
Porto
$551 Roundtrip, found 2 days ago
$551
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sat, Nov 15 from Hartford to Porto, returning Sat, Nov 22, priced at $551 found 2 days ago
Delta
Wed, Nov 5 - Fri, Nov 14
BDL
Hartford
OPO
Porto
$553 Roundtrip, found 2 days ago
$553
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 5 from Hartford to Porto, returning Fri, Nov 14, priced at $553 found 2 days ago
Delta
Thu, Jan 8 - Sun, Jan 25
BDL
Hartford
OPO
Porto
$553 Roundtrip, found 1 day ago
$553
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jan 8 from Hartford to Porto, returning Sun, Jan 25, priced at $553 found 1 day ago
American Airlines
Thu, Dec 4 - Tue, Dec 9
BDL
Hartford
OPO
Porto
$565 Roundtrip, found 8 hours ago
$565
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Thu, Dec 4 from Hartford to Porto, returning Tue, Dec 9, priced at $565 found 8 hours ago
KLM
Fri, Nov 7 - Sat, Nov 15
BDL
Hartford
OPO
Porto
$567 Roundtrip, found 2 days ago
$567
Roundtrip
found 2 days ago
Select KLM flight, departing Fri, Nov 7 from Hartford to Porto, returning Sat, Nov 15, priced at $567 found 2 days ago

Alternative airports near Porto

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dr. Francisco de Sa Carneiro OPO. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $1,259
OPO
Dr. Francisco de Sa Carneiro
CheapestClosest
Average driving time to city center14 min
Flights from $1,259
Flights from Hartford (BDL) to Porto (OPO)
Origin airport
Bradley Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air France, American Airlines, Delta, KLM, Lufthansa, Turkish Airlines, United
Roundtrip price
$537
Distance
3227 mi

Hartford to Porto Flights

The cheapest times to fly from Hartford to Porto

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Hartford to Porto are during the month of November. You can find some of the cheapest flights from Hartford to Porto with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Hartford to Porto

Sunday is one of the best days to book for cheap flights from Hartford to Porto: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Hartford to Porto

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Hartford to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $449 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Hartford to Porto flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Hartford to Porto airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Secure a cheap one-way flight from $449 or cheap return flight from $537 from Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Planning your trip for November can help you save, as it's the cheapest month for flights between BDL and OPO. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To find the cheapest airline that'll fly you from BDL to OPO, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
There aren't any daily nonstop flights departing from Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from BDL to OPO?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To avoid possible delays on the Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO) route, aim to fly before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Last-minute bookings from BDL to OPO are typically more expensive. To lock in the best rates, start looking for flights as early as possible. That said, if you're flexible with your travel dates, you may score a cheap fare just before your departure.
Is it cheaper to book a BDL to OPO flight and hotel package?
Compared with arranging hotels and flights separately, booking a BDL to OPO flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place takes the hassle out of planning your trip. Just secure your flights and select from our extensive range of stays, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Bradley Intl. Airport (BDL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
If you reserved your BDL to OPO flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.