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Dulles Intl

$139+ Cheap flights from San Francisco (SFO) to Dulles Intl (IAD)

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — IAD
Mar 1 — Mar 81
Sat 3/1
Sat 3/8
1 adult, Economy
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1. Tell us where you want to go
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The best prices from San Francisco to Washington, D.C. Dulles Intl are usually found in September or August, booked 38 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from San Francisco to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(Travelocity)

One-way from

$139
(Alaska Airlines)

Popular in

June

Cheapest in

September

Average price

$497

Good round-trip deal

$403 or less

Good one-way deal

$206 or less
Provider with most accurate pricing for San Francisco-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Washington, D.C. Dulles Intl flights.
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From San Francisco to Washington, D.C. Dulles Intl
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One-way flight from San Francisco to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 7% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from San Francisco to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from San Francisco to Washington, D.C. Dulles Intl.
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Find flight deals from San Francisco to Dulles Intl

Cheapest flights from San Francisco to Dulles Intl
Explore the most affordable flight options available from San Francisco to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 24, 2025.

This Travelocity deal was found by Cheapflights users on 2/23. 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.
Fri 4/119:35 pmSFO - IAD
Nonstop5h 05mMultiple Airlines
Wed 4/163:19 pmIAD - SFO
1 stop10h 39mMultiple Airlines
Deal found 2/23$249
This Frontier deal was found by Cheapflights users on 2/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2211:38 pmSFO - IAD
1 stop11h 44mFrontier
Fri 5/24:00 pmIAD - SFO
1 stop9h 33mFrontier
Deal found 2/23$250
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/198:20 amSFO - IAD
Nonstop5h 10mAlaska Airlines
Tue 3/257:00 amIAD - SFO
Nonstop6h 10mAlaska Airlines
Deal found 2/24$277
This Trip.com deal was found by Cheapflights users on 2/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/84:47 pmSFO - IAD
1 stop9h 47mHawaiian Airlines
Tue 4/157:00 amIAD - SFO
Nonstop6h 10mHawaiian Airlines
Deal found 2/23$285
This Delta deal was found by Cheapflights users on 2/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1911:57 amSFO - IAD
1 stop8h 03mDelta
Tue 3/256:00 amIAD - SFO
1 stop7h 47mDelta
Deal found 2/24$297
This Southwest deal was found by Cheapflights users on 2/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/305:40 amSFO - IAD
2 stops9h 15mSouthwest
Sat 5/35:50 pmIAD - SFO
1 stop7h 30mSouthwest
Deal found 2/23$302
This United Airlines deal was found by Cheapflights users on 2/23. 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 3/267:05 pmSFO - IAD
1 stop7h 11mUnited Airlines
Fri 3/286:10 pmIAD - SFO
Nonstop6h 03mUnited Airlines
Deal found 2/23$307
This American Airlines deal was found by Cheapflights users on 2/23. 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.
Wed 3/1212:15 amSFO - IAD
2 stops10h 07mAmerican Airlines
Mon 3/171:52 pmIAD - SFO
1 stop9h 58mAmerican Airlines
Deal found 2/23$322
This Cheapflightsfares deal was found by Cheapflights users on 2/23. 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.
Thu 4/246:00 pmSFO - IAD
1 stop15h 23mSun Country Air
Sun 4/2712:17 pmIAD - SFO
1 stop7h 50mSun Country Air
Deal found 2/23$368

Find flights from San Francisco to Dulles Intl within your budget

Customize your flight search to find flights from San Francisco to Dulles Intl 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 24, 2025.

Fly from

San Francisco

Fly to

Dulles Intl

Route

Depart

Return

Price

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Fri 4/11

9:35 pm-5:40 am

Nonstop5h 05m

Washington, D.C. Dulles Intl

Wed 4/16

3:19 pm-10:58 pm

1 stop10h 39m

$249

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 4/22

11:38 pm-2:22 pm

1 stop11h 44m

Washington, D.C. Dulles Intl

Fri 5/2

4:00 pm-10:33 pm

1 stop9h 33m

$250

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 3/19

8:20 am-4:30 pm

Nonstop5h 10m

Washington, D.C. Dulles Intl

Tue 3/25

7:00 am-10:10 am

Nonstop6h 10m

$277

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 4/8

4:47 pm-5:34 am

1 stop9h 47m

Washington, D.C. Dulles Intl

Tue 4/15

7:00 am-10:10 am

Nonstop6h 10m

$285

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 3/19

1:08 pm-9:04 pm

Nonstop4h 56m

Washington, D.C. Dulles Intl

Sun 3/23

10:05 pm-1:19 am

Nonstop6h 14m

$297

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Sat 4/12

5:55 am-4:44 pm

1 stop7h 49m

Washington, D.C. Dulles Intl

Sat 4/19

6:00 am-10:45 am

1 stop7h 45m

$298

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 4/30

5:40 am-5:55 pm

2 stops9h 15m

Washington, D.C. Dulles Intl

Sat 5/3

5:50 pm-10:20 pm

1 stop7h 30m

$302

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 3/12

12:15 am-1:22 pm

2 stops10h 07m

Washington, D.C. Dulles Intl

Thu 3/20

1:52 pm-7:44 pm

1 stop8h 52m

$322

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 4/24

6:00 pm-12:23 pm

1 stop15h 23m

Washington, D.C. Dulles Intl

Sun 4/27

12:17 pm-5:07 pm

1 stop7h 50m

$368

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 4/1

8:20 am-4:30 pm

Nonstop5h 10m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Showing 1-10 of 19 results
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Compare providers for flights from San Francisco to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Dulles Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San Francisco 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.

Travel insights for flights from San Francisco to Dulles Intl

Get recent, data-driven insights about flights from San Francisco to Dulles Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Francisco to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Dulles Intl. Price data was last updated on February 14, 2025.

Booking 38 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Francisco to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from San Francisco to Washington, D.C. Dulles Intl Airport (average of $309). Flying from San Francisco to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 SFO to IAD?

Find hourly flight availability from San Francisco to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 24, 2025.

When flying from San Francisco to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 13% versus a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Dulles Intl. Price data was last updated on February 23, 2025.

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

Weekly flight availability from San Francisco to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from San Francisco to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 24, 2025.

The most flights from SFO to IAD are scheduled on a Sunday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

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.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated February 24, 2025.
Read through reviews of airlines operating flights from San Francisco to Washington, D.C., such as Southwest, Breeze Airways and Alaska Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,380 reviews

Food

7.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,380 reviews
Southwest
8.1
Very good
4,380 reviews

Food

7.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Breeze Airways
8.1
Very good
150 reviews
Southwest
8.1
Very good
4,380 reviews

Food

7.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,710 reviews
Southwest
8.1
Very good
4,380 reviews

Food

7.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,175 reviews
Southwest
8.1
Very good
4,380 reviews

Food

7.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Hawaiian Airlines
7.9
Good
2,314 reviews
Southwest
8.1
Very good
4,380 reviews

Food

7.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Dulles Intl. 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 from for flights from San Francisco to Washington, D.C. Dulles Intl?

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to Washington, D.C. Dulles Intl. On average, San Francisco has 22 outbound flights to Washington, D.C. Dulles Intl per day from 8 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • What are the cheapest airlines flying from San Francisco to Washington, D.C. Dulles Intl Airport round-trip?

    Frontier, at $250, was found to be the cheapest airline from San Francisco to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Alaska Airlines and Hawaiian Airlines. You may be able to fly from San Francisco to Washington, D.C. Dulles Intl Airport for 49% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from San Francisco to Washington, D.C. Dulles Intl Airport are Alaska Airlines ($139), Breeze Airways ($144), and Frontier ($145).

  • What are the most reliable airlines from San Francisco to Washington, D.C. Dulles Intl Airport?

    No one likes to see their flight delayed. When booking a flight from San Francisco to Washington, D.C. Dulles Intl Airport consider choosing Brussels Airlines (93%), Austrian Airlines (89%) or Lufthansa (89%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from San Francisco to Washington, D.C. Dulles Intl Airport?

    The cheapest flight price from San Francisco to Washington, D.C. Dulles Intl Airport is $138. On average you can expect to pay $1,049. The most popular route, (San Francisco - Washington, D.C. Dulles Intl), can usually be booked for $204.

  • Can I find deals for flights from San Francisco to Dulles Intl that include hotel bookings?

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

  • How can I find direct flights from San Francisco to Dulles Intl?

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

  • Can I find deals for business class flights from San Francisco to Dulles Intl?

    Yes. Cheapflights offers flight deals from San Francisco 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.

  • What is the cheapest month to book a flight from San Francisco to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from San Francisco to Washington, D.C. Dulles Intl Airport (average of $309). Flying from San Francisco to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
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Alternative routes for San Francisco to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Los Angeles to Baltimore flights
San Francisco to Reagan-National flights
San Francisco to Baltimore flights
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Oakland to Reagan-National flights
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Burbank to Reagan-National flights
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Reno to Reagan-National flights
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Fresno to Reagan-National flights
Fresno to Baltimore flights
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Reno to Baltimore flights
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Top 8 airlines flying from San Francisco to Dulles Intl

Discover the top 8 airlines that operate flights from San Francisco to Dulles Intl. 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 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$48Average$328FlexibilityNo cancel feeOn-time65%
FrontierCheapest$126Average$232FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$157Average$372FlexibilityNo cancel feeOn-time83%
DeltaCheapest$233Average$405FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$246Average$463FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$256Average$454FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$312Average$551FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$316Average$481FlexibilityNo cancel feeOn-time63%
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