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Portugal

$244+ Cheap flights from Aurora, CO to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Aurora to Portugal

Keep the following information in mind while searching for Aurora to Portugal flight deals. Data was last updated September 16, 2025.

Round-trip from

$578
(American Airlines)

One-way from

$244
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$969
From Aurora to Portugal
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One-way flight from Aurora to Portugal
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Highest demand for flights based on searches. 16% potential increase in price ($186 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Aurora to Portugal

Cheapest flights from Aurora to Portugal
Explore the most affordable flight options available from Aurora to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:23 amDEN - OPO
2 stops18h 17mAmerican Airlines
Wed 11/128:20 amOPO - DEN
2 stops21h 02mAmerican Airlines
Deal found 9/15$578
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/412:45 pmDEN - OPO
1 stop13h 45mUnited Airlines
Wed 11/126:00 amOPO - DEN
1 stop17h 00mUnited Airlines
Deal found 9/15$600
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:20 pmDEN - OPO
2 stops18h 15mMultiple Airlines
Wed 11/51:55 pmOPO - DEN
2 stops33h 05mMultiple Airlines
Deal found 9/14$623
This Expedia deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:20 pmDEN - OPO
1 stop24h 20mLufthansa
Wed 11/512:30 pmOPO - DEN
2 stops17h 45mLufthansa
Deal found 9/14$628
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:45 pmDEN - OPO
1 stop14h 40mUnited Airlines
Wed 11/512:35 pmOPO - DEN
1 stop15h 48mUnited Airlines
Deal found 9/14$635
This Iberia deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:40 amDEN - OPO
2 stops19h 05mIberia
Thu 11/68:40 pmOPO - DEN
2 stops32h 42mIberia
Deal found 9/15$639
This FlightHub deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:50 pmDEN - OPO
1 stop31h 15mTurkish Airlines
Wed 10/810:50 amOPO - DEN
1 stop38h 05mTurkish Airlines
Deal found 9/16$644
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:10 pmDEN - OPO
1 stop11h 20mUnited Airlines
Thu 11/66:00 amOPO - DEN
1 stop17h 00mUnited Airlines
Deal found 9/15$650
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/411:15 amDEN - OPO
3 stops22h 45mMultiple Airlines
Wed 11/127:35 amOPO - DEN
2 stops19h 20mMultiple Airlines
Deal found 9/15$651
This Air France deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:47 amDEN - LIS
1 stop13h 13mMultiple Airlines
Sat 11/225:00 amLIS - DEN
2 stops19h 25mMultiple Airlines
Deal found 9/15$651
This Air Canada deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/811:15 amDEN - LIS
1 stop14h 40mAir Canada
Sun 11/235:00 amLIS - DEN
2 stops19h 44mAir Canada
Deal found 9/15$654
This KAYAK deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:45 pmDEN - LIS
1 stop22h 05mLufthansa
Mon 11/243:55 pmLIS - DEN
1 stop31h 05mLufthansa
Deal found 9/15$655

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aurora 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, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Aurora to Portugal that are best for you.

Fly from

Aurora

Fly to

Portugal

Route

Depart

Return

Price

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 11/4

8:50 am-7:40 am

2 stops15h 50m

Porto

Wed 11/12

8:20 am-10:22 pm

2 stops21h 02m

$578

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/10

1:45 pm-9:30 am

1 stop13h 45m

Porto

Wed 3/18

6:00 am-2:40 pm

1 stop14h 40m

$600

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 11/4

12:45 pm-9:30 am

1 stop13h 45m

Porto

Wed 11/12

6:00 am-4:00 pm

1 stop17h 00m

$600

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/10

2:27 pm-4:00 pm

2 stops19h 33m

Porto

Wed 3/18

8:40 pm-5:40 pm

2 stops27h 00m

$601

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 10/29

5:20 pm-5:35 pm

2 stops18h 15m

Porto

Wed 11/5

1:55 pm-4:00 pm

2 stops33h 05m

$623

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 10/29

5:20 pm-11:40 pm

1 stop24h 20m

Porto

Wed 11/5

12:30 pm-11:15 pm

2 stops17h 45m

$628

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 10/29

6:45 pm-3:25 pm

1 stop14h 40m

Porto

Wed 11/5

12:35 pm-9:23 pm

1 stop15h 48m

$635

DenverFunchal

DEN - FNC

DENFNC

Denver Intl

Tue 3/10

3:45 pm-9:30 am

2 stops35h 45m

Funchal Madeira

Mon 3/16

10:25 am-6:31 pm

2 stops38h 06m

$646

DenverFunchal

DEN - FNC

DENFNC

Denver Intl

Mon 3/9

4:40 pm-9:35 am

2 stops34h 55m

Funchal Madeira

Mon 3/16

10:25 am-5:37 pm

2 stops37h 12m

$646

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 11/4

11:15 am-5:00 pm

3 stops22h 45m

Porto

Wed 11/12

7:35 am-7:55 pm

2 stops19h 20m

$651

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
1
2
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6

Best time to book a flight from Aurora to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Aurora with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Aurora to Portugal (average of $612). Flying from Aurora to Portugal in June is currently the most expensive (average of $1,127). 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.

What is the cheapest time of day to fly from 9UR to PT?

Find hourly flight availability from Aurora to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Aurora to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with United Airlines, Turkish Airlines, and Air Canada from Aurora to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Turkish Airlines
7.3
Good
3,968 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,407 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,363 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Aurora to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Aurora to Portugal?

    There are many flights that can get you from Aurora to Portugal in 13h 45m. Fly via American Airlines, United Airlines, or British Airways to get the fastest option. The distance between Aurora and Portugal is about 4747 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular route from Aurora to Portugal is Denver Intl - Lisbon Humberto Delgado. You may also consider Denver Intl - Porto or Denver Intl - Faro.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Aurora 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 Aurora to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Aurora to Portugal (average of $612). Flying from Aurora to Portugal in June is currently the most expensive (average of $1,127). 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

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Top 10 airlines flying from Aurora to Portugal

Discover the top 10 airlines that operate flights from Aurora to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$458Average$676FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$539Average$1,076FlexibilityNo cancel feeOn-time72%
DeltaCheapest$548Average$962FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$555Average$675FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$569Average$896FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$577Average$899FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$582Average$708FlexibilityNo cancel feeOn-time77%
KLMCheapest$599Average$791FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$621Average$1,045FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$625Average$1,167FlexibilityNo cancel feeOn-time69%

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