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$162+ Cheap flights from Rapid City to St. Louis (RAP - STL)

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — STL
Jul 30 — Aug 61
From?
To?
Tue 7/30
Tue 8/6
1 adult, Economy
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Cheap flight deals from Rapid City to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to St. Louis (STL). 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 July 25, 2024.

Popular in

July

Cheapest in

February

Round-trip from

$258
(American Airlines)

One-way from

$162
(mytrip.com)
High demand for flights, 42% potential price rise
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Best time to find cheap flights, 42% potential price drop
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From Rapid City to Lambert-St Louis
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One-way flight from Rapid City to Lambert-St Louis
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What is the cheapest day to fly round-trip from Rapid City to St. Louis?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.

What is the cheapest month to fly from Rapid City to St. Louis?

February is one of the best times of the year to fly to St. Louis from Rapid City. Prices for February average $415 per person but you can even find prices for as low as $223. The most expensive prices can be found in the month of July. Opting for a February flight can save you 71% on your journey compared to booking in July

What is the cheapest time of day to fly from RAP to STL?

It’s optimal to fly from Rapid City to St. Louis in the afternoon. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight at noon.

Cheap Rapid City to St. Louis flights in July & August 2024

Find cheap flight options from Rapid City to St. Louis specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 2024.
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 7/2512:30 pmRAP - STL
1 stop7h 17mAmerican Airlines
Sat 9/711:36 amSTL - RAP
1 stop5h 30mAmerican Airlines
Deal found 7/25$303
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 7/2512:30 pmRAP - STL
1 stop7h 17mAmerican Airlines
Sat 9/79:00 amSTL - RAP
2 stops12h 58mAmerican Airlines
Deal found 7/25$308
This United deal was found by Cheapflights users on 7/25. 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.
Fri 7/268:51 amRAP - STL
1 stop6h 57mUnited Airlines
Sun 8/44:36 pmSTL - RAP
1 stop6h 23mUnited Airlines
Deal found 7/25$449
This United deal was found by Cheapflights users on 7/25. 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.
Fri 7/268:51 amRAP - STL
2 stops12h 40mUnited Airlines
Sun 8/44:36 pmSTL - RAP
1 stop4h 58mUnited Airlines
Deal found 7/25$484
This United deal was found by Cheapflights users on 7/25. 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.
Fri 7/268:51 amRAP - STL
2 stops12h 40mUnited Airlines
Sun 8/46:20 amSTL - RAP
2 stops15h 14mUnited Airlines
Deal found 7/25$712
This United deal was found by Cheapflights users on 7/25. 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.
Sun 7/284:00 pmRAP - STL
1 stop5h 11mUnited Airlines
Thu 8/16:30 amSTL - RAP
1 stop4h 58mUnited Airlines
Deal found 7/25$722
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 7/252:26 pmRAP - STL
2 stops17h 13mAmerican Airlines
Sat 9/76:00 amSTL - RAP
2 stops11h 06mAmerican Airlines
Deal found 7/25$775
This United deal was found by Cheapflights users on 7/25. 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.
Sun 7/285:30 amRAP - STL
2 stops7h 48mUnited Airlines
Thu 8/16:30 amSTL - RAP
1 stop4h 58mUnited Airlines
Deal found 7/25$847
This United deal was found by Cheapflights users on 7/25. 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.
Sun 7/285:30 amRAP - STL
2 stops7h 48mUnited Airlines
Thu 8/16:30 amSTL - RAP
2 stops7h 17mUnited Airlines
Deal found 7/25$1,018

Rapid City to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Rapid City and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 7/2512:30 pmRAP - STL
1 stop7h 17mAmerican Airlines
Sat 9/711:36 amSTL - RAP
1 stop5h 30mAmerican Airlines
Deal found 7/25$303
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 7/2512:30 pmRAP - STL
1 stop7h 17mAmerican Airlines
Sat 9/79:00 amSTL - RAP
2 stops12h 58mAmerican Airlines
Deal found 7/25$308
This United deal was found by Cheapflights users on 7/25. 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.
Fri 7/268:51 amRAP - STL
1 stop6h 57mUnited Airlines
Sun 8/44:36 pmSTL - RAP
1 stop6h 23mUnited Airlines
Deal found 7/25$449
This United deal was found by Cheapflights users on 7/25. 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.
Fri 7/268:51 amRAP - STL
2 stops12h 40mUnited Airlines
Sun 8/44:36 pmSTL - RAP
1 stop4h 58mUnited Airlines
Deal found 7/25$484
This United deal was found by Cheapflights users on 7/25. 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.
Fri 7/268:51 amRAP - STL
2 stops12h 40mUnited Airlines
Sun 8/46:20 amSTL - RAP
2 stops15h 14mUnited Airlines
Deal found 7/25$712
This United deal was found by Cheapflights users on 7/25. 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.
Sun 7/284:00 pmRAP - STL
1 stop5h 11mUnited Airlines
Thu 8/16:30 amSTL - RAP
1 stop4h 58mUnited Airlines
Deal found 7/25$722
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 7/252:26 pmRAP - STL
2 stops17h 13mAmerican Airlines
Sat 9/76:00 amSTL - RAP
2 stops11h 06mAmerican Airlines
Deal found 7/25$775
This United deal was found by Cheapflights users on 7/25. 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.
Sun 7/285:30 amRAP - STL
2 stops7h 48mUnited Airlines
Thu 8/16:30 amSTL - RAP
1 stop4h 58mUnited Airlines
Deal found 7/25$847
This United deal was found by Cheapflights users on 7/25. 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.
Sun 7/285:30 amRAP - STL
2 stops7h 48mUnited Airlines
Thu 8/16:30 amSTL - RAP
2 stops7h 17mUnited Airlines
Deal found 7/25$1,018

One-way flights to St. Louis from Rapid City

Search for one-way flight options from Rapid City to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/128:56 pmRAP - STL
3 stops39h 02mMultiple Airlines
Deal found 7/24$162
This Delta deal was found by Cheapflights users on 7/25. 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.
Tue 9/174:29 pmRAP - STL
1 stop4h 31mDelta
Deal found 7/25$243
This Delta deal was found by Cheapflights users on 7/25. 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.
Tue 9/175:42 amRAP - STL
2 stops8h 12mDelta
Deal found 7/25$248
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3110:04 pmRAP - STL
2 stops18h 25mMultiple Airlines
Deal found 7/24$274
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1812:10 pmRAP - STL
3 stops27h 35mMultiple Airlines
Deal found 7/24$298
This Delta deal was found by Cheapflights users on 7/24. 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 8/74:22 pmRAP - STL
1 stop6h 07mDelta
Deal found 7/24$326
This American Airlines deal was found by Cheapflights users on 7/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/186:00 amRAP - STL
2 stops8h 32mAmerican Airlines
Deal found 7/24$329
This Delta deal was found by Cheapflights users on 7/24. 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 8/75:40 amRAP - STL
2 stops6h 46mDelta
Deal found 7/24$331
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/125:49 pmRAP - STL
1 stop27h 22mUnited Airlines
Deal found 7/24$353

Find flights from Rapid City to St. Louis within your budget

Customize your flight search to find flights from Rapid City to St. Louis 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 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$258 - $382

Route

Depart

Return

Price

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Fri 8/23

1 stop6h 01m

Lambert-St Louis

Thu 8/29

1 stop6h 13m

$258

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Fri 8/23

2 stops11h 01m

Lambert-St Louis

Thu 8/29

1 stop6h 13m

$263

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Fri 8/23

2 stops11h 01m

Lambert-St Louis

Thu 8/29

2 stops11h 07m

$382

Flights are sorted by cheapest first

Deals found on 7/24

What is the cheapest day to fly from Rapid City to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Rapid City to St. Louis. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Rapid City to St. Louis flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Rapid City to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Rapid City 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.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

If weather is an important factor for your trip to St. Louis, 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 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated July 25, 2024.
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Delta
8.0
Very good
9,630 reviews
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

United Airlines
7.4
Good
10,000 reviews
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

American Airlines
7.3
Good
10,000 reviews
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Related info for your journey

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

  • Can I find flights from Rapid City to St. Louis for under $300 on Cheapflights?

    Yes, there are multiple flights from Rapid City to St. Louis for under $300. The cheapest flight booked recently is on American Airlines for just $258, but on average you can expect to pay $301.

  • What is the cheapest airline to fly from Rapid City to St. Louis round-trip?

    American Airlines, at $258, was found to be the cheapest airline from Rapid City to St. Louis.. American Airlines is currently priced 37% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Rapid City to St. Louis one-way?

    $243 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $329 and $353, respectively.

  • What does RAP to STL mean?

    Rapid City Airport is RAP and Lambert-St Louis Airport is STL. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Rapid City to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Rapid City to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Rapid City to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Rapid City to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Rapid City to St. Louis that include hotel bookings?

    Yes. In addition to deals on Rapid City to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rapid City to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to St. Louis.

  • Can I find deals for business class flights from Rapid City to St. Louis?

    Yes. Cheapflights offers flight deals from Rapid City to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Rapid City to St. Louis that allow pets onboard?

    Many airlines flying from Rapid City to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Rapid City to St. Louis?

    Yes, you can often find last-minute deals on Rapid City to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Rapid City to St. Louis flight deals updated?

    The Rapid City to St. Louis flight deals you see on this page were last updated on 7/25.

  • What is the cheapest month to book a flight from Rapid City to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Rapid City to St. Louis (average of $312). Flying from Rapid City to St. Louis in March is currently the most expensive (average of $357). 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

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Alternative routes for Rapid City to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 2 airlines flying from Rapid City to St. Louis

Discover the top 2 airlines that operate flights from Rapid City to St. Louis. 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 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$224Average$271FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$315Average$461FlexibilityNo cancel feeOn-time69%
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Search flights from Rapid City to St. Louis by cabin class

Find flights from Rapid City to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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