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Cheap flights from Washington, D.C. to Pasto from $2,832

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Pasto departing on 12/17. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Washington, D.C. to Pasto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
1:30 am - 4:30 pm
IAD
-
PSO
15h 00m
2 stops
Avianca Logo
5:10 pm - 2:55 pm
PSO
-
IAD
21h 45m
2 stops
$2,832Avianca
Thu, Dec 17 - Sat, Jan 2
Avianca Logo
5:45 am - 8:30 am
IAD
-
PSO
26h 45m
1 stop
Avianca Logo
4:15 pm - 2:55 pm
PSO
-
IAD
22h 40m
2 stops
$2,999Avianca
Fri, Dec 18 - Sat, Jan 2
Avianca Logo
5:45 am - 10:45 am
IAD
-
PSO
29h 00m
1 stop
Avianca Logo
4:15 pm - 1:15 pm
PSO
-
IAD
21h 00m
1 stop
$4,123Avianca
Fri, Dec 18 - Sat, Jan 2
Avianca Logo
4:15 pm - 7:25 am
IAD
-
PSO
15h 10m
2 stops
Avianca Logo
9:10 am - 12:10 am
PSO
-
IAD
15h 00m
3 stops
$4,195Avianca
Fri, Dec 18 - Sat, Jan 2

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Avianca flights from Washington, D.C. to Pasto

Our best Avianca deals on Washington, D.C. to Pasto flight tickets
Avianca
Dec 17
IAD1:30 amWashington, D.C. Dulles Intl
15h 00m
2 stops
PSO4:30 pmPasto Antonio Nariño
Jan 2
PSO5:10 pmPasto Antonio Nariño
21h 45m
2 stops
IAD2:55 pmWashington, D.C. Dulles Intl
$2,832
Avianca
Dec 18
IAD5:45 amWashington, D.C. Dulles Intl
26h 45m
1 stop
PSO8:30 amPasto Antonio Nariño
Jan 2
PSO4:15 pmPasto Antonio Nariño
22h 40m
2 stops
IAD2:55 pmWashington, D.C. Dulles Intl
$2,999
Avianca
Dec 18
IAD5:45 amWashington, D.C. Dulles Intl
29h 00m
1 stop
PSO10:45 amPasto Antonio Nariño
Jan 2
PSO4:15 pmPasto Antonio Nariño
21h 00m
1 stop
IAD1:15 pmWashington, D.C. Dulles Intl
$4,123

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Pasto 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 July 28, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Pasto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Pasto

IAD - PSO

IADPSO

Washington, D.C. Dulles Intl

Thu 12/17

1:30 am-4:30 pm

2 stops15h 00m

Pasto Antonio Nariño

Sat 1/2

5:10 pm-2:55 pm

2 stops21h 45m

$2,832

Washington, D.C.Pasto

IAD - PSO

IADPSO

Washington, D.C. Dulles Intl

Fri 12/18

5:45 am-8:30 am

1 stop26h 45m

Pasto Antonio Nariño

Sat 1/2

4:15 pm-2:55 pm

2 stops22h 40m

$2,999

Washington, D.C.Pasto

IAD - PSO

IADPSO

Washington, D.C. Dulles Intl

Fri 12/18

5:45 am-10:45 am

1 stop29h 00m

Pasto Antonio Nariño

Sat 1/2

4:15 pm-1:15 pm

1 stop21h 00m

$4,123
Quickest round-trip

Washington, D.C.Pasto

IAD - PSO

IADPSO

Washington, D.C. Dulles Intl

Fri 12/18

4:15 pm-7:25 am

2 stops15h 10m

Pasto Antonio Nariño

Sat 1/2

9:10 am-12:10 am

3 stops15h 00m

$4,195

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Pasto from

How to get the cheapest flight ticket from Washington, D.C. to Pasto

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

How long does it take to fly to Pasto?

Average flight duration from Washington, D.C. to Pasto depends on which airport you fly into and out of. Flying from Washington, D.C. to Pasto is 26h 45m on average, while flying from Baltimore to Pasto is 46h 20m on average. Pasto is the most popular airport in Pasto.

When to book flights from Washington, D.C. to Pasto

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Pasto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Pasto (WAS to PSO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Pasto

Fastest flight time

26h 45m

Direct flights

None
The fastest flight from Washington, D.C. to Pasto takes 26h 45m
There are no direct flights from Washington, D.C. to Pasto. There are no popular flight routes from Washington, D.C. to Pasto.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to Pasto

  • How far is Washington, D.C. to Pasto Antonio Nariño by plane?

    There are 2603.1 mi between Washington, D.C. and Pasto Antonio Nariño. In terms of flight time, this usually takes a little over 26h 45m.

  • When did momondo last update prices for flights from Washington, D.C. to Pasto Antonio Nariño Airport?

    Prices for flights from Washington, D.C. to Pasto Antonio Nariño Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Washington, D.C. to Pasto Antonio Nariño Airport?

    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 Washington, D.C. to Pasto Antonio Nariño Airport.

  • What documentation or ID do you need to fly to Pasto Antonio Nariño Airport?

    The travel and health documents required for your trip to Pasto Antonio Nariño Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Pasto Antonio Nariño Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. to Pasto?

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Pasto?

It is quick and easy to find Washington, D.C. to Pasto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Pasto that suits you.

Can I find flights from Washington, D.C. to Pasto with flexible booking policies on momondo?

momondo does allow users to show only those flights to Pasto from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Pasto?

Once you have performed a search for Washington, D.C. to Pasto 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 Washington, D.C. to Pasto right now. Can momondo alert me if prices change?

Price alerts on flights to Pasto from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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