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Cheap flights from Denver to Portugal from $195

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Portugal departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Denver to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:40 pm - 8:20 pm
DEN
-
LIS
21h 40m
1 stop
Icelandair Logo
9:20 pm - 6:05 pm
LIS
-
DEN
27h 45m
1 stop
$437Icelandair
Wed, Feb 4 - Thu, Feb 19
Multiple Airlines Logo
11:15 am - 12:05 pm
DEN
-
OPO
18h 50m
2 stops
Multiple Airlines Logo
6:20 am - 2:20 pm
OPO
-
DEN
15h 00m
1 stop
$445Multiple Airlines
Tue, Mar 24 - Wed, Apr 1
United Airlines Logo
1:40 pm - 9:30 am
DEN
-
OPO
12h 50m
1 stop
United Airlines Logo
12:35 pm - 9:56 pm
OPO
-
DEN
16h 21m
1 stop
$446United Airlines
Wed, Feb 25 - Wed, Mar 4
British Airways Logo
5:25 pm - 5:45 pm
DEN
-
OPO
17h 20m
1 stop
British Airways Logo
8:20 am - 10:37 pm
OPO
-
DEN
21h 17m
2 stops
$448British Airways
Tue, Feb 10 - Wed, Feb 25
United Airlines Logo
7:45 am - 9:30 am
DEN
-
OPO
18h 45m
2 stops
United Airlines Logo
12:35 pm - 9:39 pm
OPO
-
DEN
15h 04m
1 stop
$450United Airlines
Tue, Mar 3 - Tue, Mar 10
British Airways Logo
5:25 pm - 5:45 pm
DEN
-
OPO
17h 20m
1 stop
British Airways Logo
8:20 am - 9:41 pm
OPO
-
DEN
20h 21m
2 stops
$452British Airways
Tue, Feb 10 - Wed, Feb 25
Multiple Airlines Logo
11:15 am - 12:05 pm
DEN
-
OPO
17h 50m
2 stops
Multiple Airlines Logo
6:00 am - 10:23 am
OPO
-
DEN
35h 23m
2 stops
$458Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
American Airlines Logo
8:44 am - 11:45 am
DEN
-
OPO
20h 01m
2 stops
American Airlines Logo
8:20 am - 10:37 pm
OPO
-
DEN
21h 17m
2 stops
$461American Airlines
Tue, Feb 10 - Wed, Feb 25
Lufthansa Logo
5:20 pm - 12:50 pm
DEN
-
OPO
13h 30m
1 stop
Lufthansa Logo
6:20 am - 2:20 pm
OPO
-
DEN
15h 00m
1 stop
$462Lufthansa
Tue, Mar 24 - Wed, Apr 1
Lufthansa Logo
5:20 pm - 12:50 pm
DEN
-
OPO
13h 30m
1 stop
Lufthansa Logo
6:20 am - 2:20 pm
OPO
-
DEN
15h 00m
1 stop
$463Lufthansa
Mon, Mar 23 - Wed, Apr 1

Icelandair flights from Denver to Portugal

Our best Icelandair deals on Denver to Portugal flight tickets
Icelandair
Feb 4
DEN3:40 pmDenver Intl
21h 40m
1 stop
LIS8:20 pmLisbon Humberto Delgado
Feb 19
LIS9:20 pmLisbon Humberto Delgado
27h 45m
1 stop
DEN6:05 pmDenver Intl
$437
Icelandair
Feb 28
DEN3:40 pmDenver Intl
21h 40m
1 stop
LIS8:20 pmLisbon Humberto Delgado
Mar 8
LIS9:20 pmLisbon Humberto Delgado
27h 45m
1 stop
DEN7:05 pmDenver Intl
$463
Icelandair
Feb 4
DEN3:40 pmDenver Intl
21h 40m
1 stop
LIS8:20 pmLisbon Humberto Delgado
Feb 19
LIS9:20 pmLisbon Humberto Delgado
27h 45m
1 stop
DEN6:05 pmDenver Intl
$464

Lufthansa flights from Denver to Portugal

Our best Lufthansa deals on Denver to Portugal flight tickets
Lufthansa
Mar 24
DEN5:20 pmDenver Intl
13h 30m
1 stop
OPO12:50 pmPorto
Apr 1
OPO6:20 amPorto
15h 00m
1 stop
DEN2:20 pmDenver Intl
$462
Lufthansa
Mar 23
DEN5:20 pmDenver Intl
13h 30m
1 stop
OPO12:50 pmPorto
Apr 1
OPO6:20 amPorto
15h 00m
1 stop
DEN2:20 pmDenver Intl
$463
Lufthansa
Mar 23
DEN5:20 pmDenver Intl
13h 30m
1 stop
OPO12:50 pmPorto
Mar 31
OPO6:20 amPorto
15h 00m
1 stop
DEN2:20 pmDenver Intl
$471

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Denver to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 2/4

3:40 pm-8:20 pm

1 stop21h 40m

Lisbon Humberto Delgado

Thu 2/19

9:20 pm-6:05 pm

1 stop27h 45m

$437

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/24

11:15 am-12:05 pm

2 stops18h 50m

Porto

Wed 4/1

6:20 am-2:20 pm

1 stop15h 00m

$445

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 2/25

1:40 pm-9:30 am

1 stop12h 50m

Porto

Wed 3/4

12:35 pm-9:56 pm

1 stop16h 21m

$446

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 2/10

5:25 pm-5:45 pm

1 stop17h 20m

Porto

Wed 2/25

8:20 am-10:37 pm

2 stops21h 17m

$448

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/3

7:45 am-9:30 am

2 stops18h 45m

Porto

Tue 3/10

12:35 pm-9:39 pm

1 stop15h 04m

$450

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 2/10

5:25 pm-5:45 pm

1 stop17h 20m

Porto

Wed 2/25

8:20 am-9:41 pm

2 stops20h 21m

$452

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 2/18

11:15 am-12:05 pm

2 stops17h 50m

Porto

Wed 2/25

6:00 am-10:23 am

2 stops35h 23m

$458

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 2/10

8:44 am-11:45 am

2 stops20h 01m

Porto

Wed 2/25

8:20 am-10:37 pm

2 stops21h 17m

$461

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/24

5:20 pm-12:50 pm

1 stop13h 30m

Porto

Wed 4/1

6:20 am-2:20 pm

1 stop15h 00m

$462

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Mon 3/23

5:20 pm-12:50 pm

1 stop13h 30m

Porto

Wed 4/1

6:20 am-2:20 pm

1 stop15h 00m

$463

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from Denver to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Denver is in November. Flight prices, which tend to average around $662, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Portugal from Denver during January instead. Flights to Portugal in January, while not as cheap as those in November, still average around $702.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $916 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Denver for as low as $846 on momondo.

Can stopping save me money on Denver to Portugal flights?

You could potentially save up to 22% on your flight if you consider stops on a Denver to Portugal flight.

Cheap Denver to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Portugal

Fastest flight time

11h 39m

Direct flights

None
The fastest flight from Denver to Portugal takes 11h 39m
There are no direct flights from Denver to Portugal. There are no popular flight routes from Denver to Portugal.
Search flight deals

  • When did momondo last update prices for flights from Denver Intl Airport to Portugal?

    Prices for flights from Denver Intl Airport to Portugal are refreshed on a daily basis.

  • How many operators does momondo search for flights from Denver Intl Airport to Portugal?

  • How old do you have to be to fly from Denver Intl Airport to Portugal?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Denver to Portugal

Compare and see reviews for airlines that fly from Denver to Portugal with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $458Free CancellationRating
7.1
602 reviews
Search Icelandair flights
British AirwaysPriceFrom $555Free CancellationRating
6.7
7,689 reviews
Search British Airways flights
LufthansaPriceFrom $560Free CancellationRating
6.8
7,738 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $574Free CancellationRating
7.3
4,200 reviews
Search Turkish Airlines flights
DeltaPriceFrom $575Free CancellationRating
7.9
8,088 reviews
Search Delta flights
United AirlinesPriceFrom $579Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
KLMPriceFrom $599Free CancellationRating
7.7
1,442 reviews
Search KLM flights
Virgin AtlanticPriceFrom $603Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
Air CanadaPriceFrom $625Free CancellationRating
7.1
10,646 reviews
Search Air Canada flights
Air FrancePriceFrom $655Free CancellationRating
7.4
1,523 reviews
Search Air France flights

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Portugal?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Denver to Portugal. momondo saves you time and could save you money on your trip.

Can I find flights from Denver to Portugal with flexible booking policies on momondo?

Flights from Denver to Portugal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Denver to Portugal?

Once you have performed a search for Denver to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Denver to Portugal right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Portugal from Denver. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Portugal trip

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Find better results for your trip to Portugal

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Popular flights according to clicks in the last 7 days on momondo
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