What are the cheapest airlines to fly from Saint Paul to Washington, D.C. Dulles Intl Airport one-way?

One-way options have recently been found by users for as low as $76 on Frontier. Other airlines that offer cheap prices include Sun Country Air from $99 and Southwest from $153 one-way.

Weekly flight availability from Saint Paul to Washington, D.C. Dulles Intl Airport

The most flights from SA1 to IAD are scheduled on a Monday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the cheapest flights from Saint Paul to Washington, D.C. Dulles Intl Airport?

Looking for the cheapest flight from Saint Paul to Washington, D.C. Dulles Intl Airport? While on average our users pay $370, our data indicates the cheapest price to be $157. The most popular route (Minneapolis St Paul - Washington, D.C. Dulles Intl), is priced around $179.

What are the most reliable airlines from Saint Paul to Washington, D.C. Dulles Intl Airport?

The top 3 most reliable airlines when flying from Saint Paul to Washington, D.C. Dulles Intl Airport are Mesa Airlines (100%), United Airlines (99%) and Brussels Airlines (97%).

What are the most popular airlines that fly from Saint Paul to Washington, D.C. Dulles Intl Airport?

Before booking your flight from Saint Paul to Washington, D.C. Dulles Intl Airport check out the most popular airlines for this route: Delta, United Airlines or Sun Country Air.

Can I find deals for flights from Saint Paul to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Saint Paul to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Saint Paul to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Paul to Dulles Intl.

Can I find deals for business class flights from Saint Paul to Dulles Intl?

Yes. Cheapflights offers flight deals from Saint Paul to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Cheap Flights from Saint Paul to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Saint Paul to Washington, D.C. Dulles Intl are usually found in February or July, booked 56 days in advance, depart on a Sunday or Friday and return on a Thursday

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Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	May
Cheapest in	February
Average price	$301

Provider with most accurate pricing for Minneapolis St Paul-Washington, D.C. (WAS) flight deals.

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Highest demand for flights based on searches. 5% potential increase in price ($17 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in November 2026

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Everything you need to know about your flight from Saint Paul to Washington, D.C. Dulles Intl Airport

Prices

Airlines

What is the cheapest time of day to fly from SA1 to IAD?

One of the essential ways to save on airfare from Saint Paul to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 34% on airfare.

What is the cheapest day to fly from Saint Paul to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Saint Paul to Washington, D.C. Dulles Intl Airport flight should consider departing on Saturday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta,United Airlines, andSun Country Air from Saint Paul to Washington, D.C. Dulles Intl Airport 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.

Delta

7.8

Good

8,700 reviews

Reviews

1 / 20

8.0

Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Delta

7.8

Good

8,700 reviews

Delta

7.8

Good

8,700 reviews

Reviews

1 / 20

8.0

Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

United Airlines

7.3

Good

10,474 reviews

Delta

7.8

Good

8,700 reviews

Reviews

1 / 20

8.0

Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Sun Country Air

6.7

Okay

306 reviews

Delta

7.8

Good

8,700 reviews

Reviews

1 / 20

8.0

Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Frontier

5.5

Fair

2,506 reviews

Delta

7.8

Good

8,700 reviews

Reviews

1 / 20

8.0

Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Related info for your journey

What are the cheapest airlines to fly from Saint Paul to Washington, D.C. Dulles Intl Airport one-way?
One-way options have recently been found by users for as low as $76 on Frontier. Other airlines that offer cheap prices include Sun Country Air from $99 and Southwest from $153 one-way.
What are the most reliable airlines from Saint Paul to Washington, D.C. Dulles Intl Airport?
The top 3 most reliable airlines when flying from Saint Paul to Washington, D.C. Dulles Intl Airport are Mesa Airlines (100%), United Airlines (99%) and Brussels Airlines (97%).
What are the cheapest flights from Saint Paul to Washington, D.C. Dulles Intl Airport?
Looking for the cheapest flight from Saint Paul to Washington, D.C. Dulles Intl Airport? While on average our users pay $370, our data indicates the cheapest price to be $157. The most popular route (Minneapolis St Paul - Washington, D.C. Dulles Intl), is priced around $179.
Can I find deals for flights from Saint Paul to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Saint Paul to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Saint Paul to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Paul to Dulles Intl.
Can I find deals for business class flights from Saint Paul to Dulles Intl?
Yes. Cheapflights offers flight deals from Saint Paul to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 4 airlines flying from Saint Paul to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Sun Country Air	Cheapest$97	Average$245	FlexibilityNo cancel fee	On-time83%
Frontier	Cheapest$174	Average$297	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$195	Average$341	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$203	Average$353	FlexibilityNo cancel fee	On-timeN/A

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Cheap flights from Saint Paul, MN to Dulles Intl (IAD)

Find cheap flights from Saint Paul to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Saint Paul to Dulles Intl

Most accurate provider

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Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from SA1 to IAD?

One of the essential ways to save on airfare from Saint Paul to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 34% on airfare.

What is the cheapest day to fly from Saint Paul to Washington, D.C. Dulles Intl Airport?

Weekly flight availability from Saint Paul to Washington, D.C. Dulles Intl Airport

The most flights from SA1 to IAD are scheduled on a Monday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Dulles Intl

Related info for your journey

What are the cheapest airlines to fly from Saint Paul to Washington, D.C. Dulles Intl Airport one-way?

What are the most reliable airlines from Saint Paul to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from Saint Paul to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Saint Paul to Dulles Intl that include hotel bookings?

How can I find direct flights from Saint Paul to Dulles Intl?

Can I find deals for business class flights from Saint Paul to Dulles Intl?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Saint Paul to Dulles Intl

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Complete your trip

Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 10, 2026.

Search flights from Saint Paul to Dulles Intl by cabin class

Find flights from Saint Paul to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Saint Paul and Dulles Intl flights

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