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Portugal

$249+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This KAYAK deal was found by Cheapflights users on 12/17. 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.
Wed 12/314:05 pmDEN - LIS
1 stop11h 10mLufthansa
Wed 3/255:00 amLIS - DEN
2 stops24h 30mLufthansa
Deal found 12/17$563
This Cheapflightsfares deal was found by Cheapflights users on 12/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:01 pmDEN - LIS
1 stop14h 04mBritish Airways
Tue 1/1311:05 amLIS - DEN
1 stop18h 19mBritish Airways
Deal found 12/16$564
This KAYAK deal was found by Cheapflights users on 12/17. 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.
Wed 12/314:05 pmDEN - LIS
1 stop11h 10mLufthansa
Thu 3/267:45 amLIS - DEN
2 stops21h 45mLufthansa
Deal found 12/17$565
This KAYAK deal was found by Cheapflights users on 12/17. 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.
Wed 12/3111:20 amDEN - LIS
2 stops29h 10mLufthansa
Mon 3/2312:25 pmLIS - DEN
1 stop37h 30mLufthansa
Deal found 12/17$573
This Finnair deal was found by Cheapflights users on 12/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:00 amDEN - LIS
1 stop19h 05mMultiple Airlines
Tue 1/1311:05 amLIS - DEN
1 stop18h 19mMultiple Airlines
Deal found 12/17$575
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:20 pmDEN - LIS
1 stop24h 10mUnited Airlines
Tue 1/1310:15 amLIS - DEN
1 stop14h 43mUnited Airlines
Deal found 12/16$577
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:07 amDEN - LIS
2 stops17h 58mAmerican Airlines
Tue 1/1311:05 amLIS - DEN
2 stops19h 11mAmerican Airlines
Deal found 12/16$580
This KAYAK deal was found by Cheapflights users on 12/17. 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.
Wed 12/315:35 pmDEN - LIS
2 stops38h 00mSWISS
Mon 3/232:20 pmLIS - DEN
2 stops31h 10mSWISS
Deal found 12/17$618
This KAYAK deal was found by Cheapflights users on 12/17. 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.
Wed 12/315:35 pmDEN - LIS
2 stops34h 50mSWISS
Sun 3/226:45 pmLIS - DEN
2 stops33h 10mSWISS
Deal found 12/17$727
This oojo deal was found by Cheapflights users on 12/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:20 pmDEN - OPO
1 stop31h 35mTurkish Airlines
Fri 1/94:10 pmOPO - DEN
1 stop32h 25mTurkish Airlines
Deal found 12/17$1,258
This oojo deal was found by Cheapflights users on 12/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:40 pmDEN - OPO
2 stops30h 10mMultiple Airlines
Fri 1/99:55 pmOPO - DEN
2 stops43h 47mMultiple Airlines
Deal found 12/17$1,485
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:20 pmDEN - FAO
2 stops24h 30mLufthansa
Wed 12/312:10 pmFAO - DEN
2 stops36h 18mLufthansa
Deal found 12/16$1,713

Find flight deals from Aurora to Portugal

Keep the following information in mind while searching for Aurora to Portugal flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$501
(Kiwi.com)

One-way from

$249
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,337
Provider with most accurate pricing for Denver Intl-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Lisbon Humberto Delgado flights.
Search Deals
From Aurora to Portugal
Search Deals
One-way flight from Aurora to Portugal
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

9:59 am-8:10 am

1 stop15h 11m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-1:40 pm

1 stop15h 40m

$550

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 2/11

4:20 pm-3:15 pm

1 stop15h 55m

Lisbon Humberto Delgado

Wed 2/18

5:00 am-6:03 pm

2 stops20h 03m

$557

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 1/11

6:00 am-8:00 am

2 stops19h 00m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-10:46 pm

2 stops24h 46m

$558

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 3/2

2:04 pm-10:15 am

1 stop13h 11m

Lisbon Humberto Delgado

Wed 3/11

5:00 am-7:48 pm

2 stops20h 48m

$563

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 3/11

1:25 pm-9:20 am

1 stop13h 55m

Lisbon Humberto Delgado

Thu 3/19

5:00 am-7:40 pm

2 stops20h 40m

$565

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 3/11

11:35 am-11:20 am

2 stops17h 45m

Lisbon Humberto Delgado

Thu 3/19

5:00 am-10:18 pm

2 stops23h 18m

$570

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Mon 12/29

4:20 pm-11:30 pm

1 stop24h 10m

Lisbon Humberto Delgado

Tue 1/13

10:15 am-5:58 pm

1 stop14h 43m

$577

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sat 3/7

8:43 pm-9:20 am

2 stops29h 37m

Lisbon Humberto Delgado

Thu 3/19

7:10 am-7:55 pm

2 stops18h 45m

$589

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Thu 3/19

5:20 pm-1:20 pm

1 stop14h 00m

Lisbon Humberto Delgado

Tue 3/31

7:25 am-3:40 pm

1 stop15h 15m

$606

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Thu 1/8

6:30 am-8:00 am

1 stop18h 30m

Lisbon Humberto Delgado

Mon 1/12

11:25 am-4:44 pm

2 stops36h 19m

$616

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 50 results
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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, November is the cheapest month in which you can book a flight from Aurora to Portugal (average of $505). Flying from Aurora to Portugal in June is currently the most expensive (average of $1,005). 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 December 18, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 27% on flights from Aurora to Portugal by exploring options for tickets in the evening.

What is the cheapest day to fly from Aurora to Portugal?

Use this chart to determine the cheapest time to fly round-trip from Aurora to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Aurora to Portugal flight should consider departing on Monday mornings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 18, 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
9,095 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Turkish Airlines
7.3
Good
4,103 reviews
United Airlines
7.4
Good
9,095 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Air Canada
7.1
Good
10,534 reviews
United Airlines
7.4
Good
9,095 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Lufthansa
6.8
Okay
7,637 reviews
United Airlines
7.4
Good
9,095 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
British Airways
6.7
Okay
7,586 reviews
United Airlines
7.4
Good
9,095 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 15h 11m. Fly via United Airlines, Lufthansa, or Delta to get the fastest option. The distance between Aurora and Portugal is about 4826 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $251 on Icelandair. Other airlines that offer cheap prices include British Airways from $326 and Air France from $408 one-way.

  • 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, November is the cheapest month in which you can book a flight from Aurora to Portugal (average of $505). Flying from Aurora to Portugal in June is currently the most expensive (average of $1,005). 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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Alternative routes for Aurora to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$458Average$668FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$539Average$984FlexibilityNo cancel feeOn-time72%
DeltaCheapest$551Average$939FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$555Average$887FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$565Average$1,075FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$569Average$876FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$574Average$689FlexibilityNo cancel feeOn-time77%
KLMCheapest$575Average$768FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$594Average$1,338FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$596Average$1,195FlexibilityNo cancel feeOn-time69%

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