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Portugal

Cheap flights from Dallas to Portugal

DFW — LIS
Nov 5 — Nov 121
Thu 11/5
Thu 11/12
1 adult, Economy
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Find flight deals from Dallas to Portugal

Popular in

June

Cheapest in

January

Average price

$824
Highest demand for flights based on searches. 18% potential increase in price ($194 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Insights

Everything you need to know about your flight from Dallas to Portugal

How far ahead should I book a flight from Dallas to Portugal?

To ensure you get the cheapest price possible for a flight from Dallas to Portugal, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Dallas to Portugal?

Currently, April is the cheapest month in which you can book a flight from Dallas to Portugal (average of $660). Flying from Dallas to Portugal in July is currently the most expensive (average of $1,058). 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.

Reviews of airlines servicing Portugal

See what other customers who have flown with Finnair,United Airlines, andAmerican Airlines from Dallas to Portugal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,428 reviews

Boarding

7.6

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Finnair
7.6
Good
1,428 reviews
Finnair
7.6
Good
1,428 reviews

Boarding

7.6

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
United Airlines
7.4
Good
10,287 reviews
Finnair
7.6
Good
1,428 reviews

Boarding

7.6

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
American Airlines
7.0
Good
12,128 reviews
Finnair
7.6
Good
1,428 reviews

Boarding

7.6

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Iberia
7.0
Good
3,258 reviews
Finnair
7.6
Good
1,428 reviews

Boarding

7.6

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
British Airways
6.7
Okay
8,245 reviews
Finnair
7.6
Good
1,428 reviews

Boarding

7.6

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

Related info for your journey

  • What are the cheapest airlines to fly from Dallas to Portugal one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $218. Delta flights start at $245 while deals on United Airlines start at $246 one-way.

  • What are the most popular routes from Dallas to Portugal?

    While some choose either Dallas Love Field - Lisbon Humberto Delgado or Dallas/Fort Worth - Porto, Dallas/Fort Worth - Lisbon Humberto Delgado is the most popular route from Dallas to Portugal.

  • Can I find deals for flights from Dallas to Portugal that include hotel bookings?

    Yes. In addition to deals on Dallas to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dallas to Portugal?

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

  • Can I find deals for business class flights from Dallas to Portugal?

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

  • What is the cheapest month to book a flight from Dallas to Portugal?

    Currently, April is the cheapest month in which you can book a flight from Dallas to Portugal (average of $660). Flying from Dallas to Portugal in July is currently the most expensive (average of $1,058). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Dallas to Portugal

AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$457Average$952FlexibilityNo cancel feeOn-time76%
IberiaCheapest$493Average$925FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$500Average$771FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$502Average$893FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$518Average$692FlexibilityNo cancel feeOn-time77%
DeltaCheapest$521Average$858FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$524Average$793FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$557Average$1,048FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$557Average$931FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$612Average$928FlexibilityNo cancel feeOn-time77%

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