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$282+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — OPO
oct. 16 — oct. 231
jeu. 10/16
jeu. 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Aurora to Porto are usually found in January or February, booked 84 days in advance, depart on a Monday or Thursday and return on a Wednesday

Cheap flight deals from Aurora to Porto

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

Round-trip from

$578
(American Airlines)

One-way from

$282
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$962
From Aurora to Porto
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One-way flight from Aurora to Porto
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Highest demand for flights based on searches. 23% potential increase in price ($298 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($47 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 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 septembre 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.
mar. 11/46:23 amDEN - OPO
2 stops18h 17mAmerican Airlines
mer. 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.
mar. 11/412:45 pmDEN - OPO
1 stop13h 45mUnited Airlines
mer. 11/126:00 amOPO - DEN
1 stop17h 00mUnited Airlines
Deal found 9/15$600
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/274:10 pmDEN - OPO
1 stop11h 20mUnited Airlines
ven. 11/712:30 pmOPO - DEN
2 stops17h 45mUnited Airlines
Deal found 9/16$610
This United 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2711:45 amDEN - OPO
1 stop15h 45mMultiple Airlines
ven. 11/76:15 amOPO - DEN
1 stop15h 20mMultiple Airlines
Deal found 9/16$611
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.
mer. 10/295:20 pmDEN - OPO
2 stops18h 15mMultiple Airlines
mer. 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.
mer. 10/295:20 pmDEN - OPO
1 stop24h 20mLufthansa
mer. 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.
mer. 10/296:45 pmDEN - OPO
1 stop14h 40mUnited Airlines
mer. 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.
jeu. 10/3010:40 amDEN - OPO
2 stops19h 05mIberia
jeu. 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.
mar. 9/237:50 pmDEN - OPO
1 stop31h 15mTurkish Airlines
mer. 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.
jeu. 10/304:10 pmDEN - OPO
1 stop11h 20mUnited Airlines
jeu. 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.
mar. 11/411:15 amDEN - OPO
3 stops22h 45mMultiple Airlines
mer. 11/127:35 amOPO - DEN
2 stops19h 20mMultiple Airlines
Deal found 9/15$651

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 septembre 16, 2025.
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

mar. 3/10

1:45 pm-9:30 am

1 stop13h 45m

Porto

mer. 3/18

6:00 am-2:40 pm

1 stop14h 40m

$600

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mar. 3/3

12:46 pm-9:30 am

1 stop13h 44m

Porto

mar. 3/17

6:00 am-2:40 pm

1 stop14h 40m

$600

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mer. 3/4

1:45 pm-9:30 am

1 stop12h 45m

Porto

jeu. 3/19

6:00 am-2:40 pm

1 stop14h 40m

$600

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mar. 11/4

12:45 pm-9:30 am

1 stop13h 45m

Porto

mer. 11/12

6:00 am-4:00 pm

1 stop17h 00m

$600

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mar. 3/3

1:45 pm-9:30 am

1 stop12h 45m

Porto

jeu. 3/19

6:00 am-2:40 pm

1 stop14h 40m

$600

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mar. 3/10

2:27 pm-4:00 pm

2 stops19h 33m

Porto

mer. 3/18

8:40 pm-5:40 pm

2 stops27h 00m

$601

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mer. 10/15

6:10 am-3:25 pm

3 stops26h 15m

$282

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mar. 10/14

10:55 pm-7:25 am

2 stops49h 30m

$338

DenverPorto

DEN - OPO

DENOPO

Denver Intl

mar. 10/14

12:25 pm-9:45 am

1 stop14h 20m

$478

DenverPorto

DEN - OPO

DENOPO

Denver Intl

jeu. 10/16

7:50 pm-9:45 am

1 stop30h 55m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 11 results
1
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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 September 12, 2025.

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 84 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, January is the cheapest month in which you can book a flight from Aurora to Porto (average of $523). Flying from Aurora to Porto in June is currently the most expensive (average of $1,027). 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 OPO?

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Aurora to Porto as you normally would.

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 septembre 16, 2025.
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
8,924 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

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

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

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

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

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

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

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 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 fly from Aurora to Porto in about 13h 45m. The time it takes to get you to your destination can typically vary by up to . The distance from Aurora to Porto is about 4747 mi.

  • 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, January is the cheapest month in which you can book a flight from Aurora to Porto (average of $523). Flying from Aurora to Porto in June is currently the most expensive (average of $1,027). 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
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 septembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$574Average$679FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$663Average$900FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$750Average$1,035FlexibilityNo cancel feeOn-time69%

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