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$279+ Cheap flights from Aurora, CO to Porto (OPO)

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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — OPO
Mar 12 — Mar 191
Thu 3/12
Thu 3/19
1 adult, Economy
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Cheap flight deals from Aurora to Porto

Cheapest flights from Aurora to Porto
Explore the most affordable flight options available from Aurora to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 10, 2026.

This Mytrip deal was found by Cheapflights users on 2/9. 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 11/44:20 pm
DEN
-
OPO
1 stop13h 30m
Lufthansa
Thu 11/196:00 am
OPO
-
DEN
1 stop17h 00m
Lufthansa
Deal found 2/9$484
This Gotogate deal was found by Cheapflights users on 2/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:25 pm
DEN
-
OPO
2 stops22h 05m
Multiple Airlines
Thu 11/196:00 am
OPO
-
DEN
1 stop17h 00m
Multiple Airlines
Deal found 2/9$486
This United Airlines deal was found by Cheapflights users on 2/9. 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 11/41:45 pm
DEN
-
OPO
1 stop12h 45m
United Airlines
Thu 11/196:00 am
OPO
-
DEN
1 stop17h 00m
United Airlines
Deal found 2/9$488
This United Airlines deal was found by Cheapflights users on 2/9. 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 11/39:40 am
DEN
-
OPO
2 stops16h 50m
United Airlines
Fri 11/206:00 am
OPO
-
DEN
1 stop17h 00m
United Airlines
Deal found 2/9$493
This Travelocity deal was found by Cheapflights users on 2/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:20 pm
DEN
-
OPO
1 stop13h 30m
Multiple Airlines
Tue 11/177:20 pm
OPO
-
DEN
2 stops31h 35m
Multiple Airlines
Deal found 2/9$497
This United Airlines deal was found by Cheapflights users on 2/9. 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 11/28:17 am
DEN
-
OPO
2 stops18h 13m
United Airlines
Thu 11/196:00 am
OPO
-
DEN
1 stop17h 00m
United Airlines
Deal found 2/9$498
This United Airlines deal was found by Cheapflights users on 2/9. 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 11/28:17 am
DEN
-
OPO
2 stops18h 13m
United Airlines
Fri 11/206:00 am
OPO
-
DEN
2 stops24h 03m
United Airlines
Deal found 2/9$503
This KAYAK deal was found by Cheapflights users on 2/9. 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.
Sun 11/15:45 pm
DEN
-
OPO
1 stop21h 40m
Lufthansa
Thu 11/196:00 am
OPO
-
DEN
1 stop17h 00m
Lufthansa
Deal found 2/9$504
This United Airlines deal was found by Cheapflights users on 2/9. 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 11/312:30 pm
DEN
-
OPO
1 stop14h 00m
United Airlines
Tue 11/1712:35 pm
OPO
-
DEN
1 stop15h 50m
United Airlines
Deal found 2/9$507
This United Airlines deal was found by Cheapflights users on 2/9. 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 11/27:32 am
DEN
-
OPO
2 stops18h 58m
United Airlines
Tue 11/1712:35 pm
OPO
-
DEN
2 stops18h 20m
United Airlines
Deal found 2/9$512

Find flight deals from Aurora to Porto

Keep the following information in mind while searching for Aurora to Porto flight deals. Data was last updated February 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$550
(FlightHub)

One-way from

$279
(United Airlines)

Popular in

June

Cheapest in

March

Average price

$989
Provider with most accurate pricing for Denver Intl-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Porto flights.
Search Deals
From Aurora to Porto
Search Deals
One-way flight from Aurora to Porto
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($230 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aurora to Porto 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 February 10, 2026.
Use the filters below to find and compare flights from Aurora to Porto that are best for you.

Fly from

Aurora

Fly to

Porto

Route

Depart

Return

Price

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/10

9:36 am-2:45 pm

2 stops23h 09m

Porto

Wed 3/18

6:00 am-5:00 pm

1 stop17h 00m

$569

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/10

6:40 am-10:30 am

2 stops21h 50m

Porto

Wed 3/18

5:00 am-10:17 pm

2 stops23h 17m

$571

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Thu 4/9

6:00 am-11:15 am

2 stops22h 15m

Porto

Fri 4/17

6:00 am-3:40 pm

1 stop16h 40m

$619

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 3/18

10:31 am-10:30 am

2 stops17h 59m

Porto

Tue 3/24

9:55 am-9:28 pm

2 stops17h 33m

$660

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 3/3

6:00 am-9:30 am

2 stops20h 30m

Porto

Tue 3/10

12:35 pm-9:39 pm

1 stop15h 04m

$662

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Fri 3/27

8:20 pm-8:45 am

1 stop30h 25m

Porto

Thu 4/2

6:10 am-6:25 pm

1 stop19h 15m

$670

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 3/11

6:45 pm-3:25 pm

1 stop14h 40m

Porto

Wed 3/18

6:00 am-5:00 pm

1 stop17h 00m

$677

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Wed 4/8

5:40 pm-3:40 pm

1 stop15h 00m

Porto

Sun 4/12

12:10 pm-4:29 pm

2 stops35h 19m

$690

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 5/12

5:40 pm-10:05 pm

1 stop21h 25m

Porto

Sun 5/24

6:30 am-3:40 pm

1 stop16h 10m

$692

DenverPorto

DEN - OPO

DENOPO

Denver Intl

Tue 7/21

11:25 am-6:50 am

1 stop12h 25m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

Showing 1-10 of 18 results
1
2

Best time to book a flight from Aurora to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto 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 Porto

How far ahead should I book a flight from Aurora to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Aurora to Porto. Price data was last updated on February 6, 2026.

The price you pay for your flight from Aurora to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 35 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Aurora to Porto (average of $574). Flying from Aurora to Porto in June is currently the most expensive (average of $1,092). 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 Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated February 10, 2026.
Read through reviews of airlines operating flights from Aurora to Porto, such as United Airlines, Turkish Airlines, and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,267 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,267 reviews
United Airlines
7.4
Good
9,267 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Turkish Airlines
7.3
Good
4,212 reviews
United Airlines
7.4
Good
9,267 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,779 reviews
United Airlines
7.4
Good
9,267 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

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

  • What airport do you fly into for flights to Porto from Aurora?

    Porto (OPO) is the airport you will fly into if you book a flight from Aurora to Porto. You should not have trouble finding flights to Porto from Aurora; the airport handles an average of 0 inbound flights from Aurora per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Porto airport from Aurora. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

  • How long is the flight from Aurora to Porto?

    Airlines like United Airlines, Delta, and KLM fly from Aurora to Porto in about 17h 59m. The time it takes to get you to your destination can typically vary by up to 5h 10m. The distance from Aurora to Porto is about 4747 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Aurora to Porto (average of $574). Flying from Aurora to Porto in June is currently the most expensive (average of $1,092). 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

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra

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Top 3 airlines flying from Aurora to Porto

Discover the top 3 airlines that operate flights from Aurora to Porto. 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 February 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$574Average$690FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$593Average$1,137FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$641Average$871FlexibilityNo cancel feeOn-time76%

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