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$1,347+ Cheap flights from Rapid City (RAP) to Sydney (SYD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SYD
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Rapid City to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Sydney (SYD). 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 September 15, 2025.

Round-trip from

$1,347
(American Airlines)
From Rapid City to Sydney Kingsford Smith
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Find flight deals from Rapid City to Sydney

Cheapest flights from Rapid City to Sydney
Explore the most affordable flight options available from Rapid City to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 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.
Wed 10/294:58 pmRAP - SYD
1 stop20h 57mAmerican Airlines
Thu 11/62:05 pmSYD - RAP
1 stop25h 12mAmerican Airlines
Deal found 9/15$1,347
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.
Wed 10/291:30 pmRAP - SYD
2 stops24h 30mUnited Airlines
Sat 11/811:50 amSYD - RAP
2 stops28h 08mUnited Airlines
Deal found 9/15$1,367
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.
Wed 10/296:00 pmRAP - SYD
2 stops22h 05mUnited Airlines
Tue 11/412:10 pmSYD - RAP
2 stops22h 50mUnited Airlines
Deal found 9/15$1,547
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.
Wed 10/294:58 pmRAP - SYD
1 stop20h 57mAmerican Airlines
Sun 11/22:05 pmSYD - RAP
1 stop25h 12mAmerican Airlines
Deal found 9/15$2,098

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City to Sydney 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 September 15, 2025.
Use the filters below to find and compare flights from Rapid City to Sydney that are best for you.

Fly from

Rapid City

Fly to

Sydney

Route

Depart

Return

Price

Rapid CitySydney

RAP - SYD

RAPSYD

Rapid City

Wed 10/29

4:58 pm-6:55 am

1 stop20h 57m

Sydney Kingsford Smith

Thu 11/6

2:05 pm-9:17 pm

1 stop25h 12m

$1,347

Rapid CitySydney

RAP - SYD

RAPSYD

Rapid City

Wed 10/29

1:30 pm-7:00 am

2 stops24h 30m

Sydney Kingsford Smith

Sat 11/8

11:50 am-9:58 pm

2 stops28h 08m

$1,367

Rapid CitySydney

RAP - SYD

RAPSYD

Rapid City

Wed 10/29

8:45 am-9:15 am

2 stops31h 30m

Sydney Kingsford Smith

Wed 11/5

12:10 pm-2:43 pm

2 stops20h 33m

$1,367

Rapid CitySydney

RAP - SYD

RAPSYD

Rapid City

Wed 10/29

1:30 pm-9:15 am

2 stops26h 45m

Sydney Kingsford Smith

Fri 11/7

11:20 am-6:43 pm

2 stops25h 23m

$1,367

Rapid CitySydney

RAP - SYD

RAPSYD

Rapid City

Wed 10/29

6:05 am-7:10 am

2 stops32h 05m

Sydney Kingsford Smith

Sun 11/2

10:40 am-11:36 pm

2 stops29h 56m

$1,547

Rapid CitySydney

RAP - SYD

RAPSYD

Rapid City

Wed 10/29

4:58 pm-6:55 am

1 stop20h 57m

Sydney Kingsford Smith

Sun 11/2

2:05 pm-10:17 pm

1 stop25h 12m

$2,098

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Rapid City to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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.

Cheapflights Insights

Everything you need to know about your flight from Rapid City to Sydney

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

Find hourly flight availability from Rapid City to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Rapid City to Sydney in the morning. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Rapid City to Sydney, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

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
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

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 Rapid City to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Rapid City to Sydney?

    Departing from Rapid City to Sydney will take you 20h 57m. Airlines will cover a distance of 8519 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Rapid City to Sydney round-trip?

    United Airlines, at $1,364, was found to be the cheapest airline from Rapid City to Sydney..

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

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

  • How can I find direct flights from Rapid City to Sydney?

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

  • Can I find deals for business class flights from Rapid City to Sydney?

    Yes. Cheapflights offers flight deals from Rapid City to Sydney 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 Rapid City to Sydney?

    Currently, March is the cheapest month in which you can book a flight from Rapid City to Sydney (average of $1,032). Flying from Rapid City to Sydney in December is currently the most expensive (average of $1,627). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

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Alternative routes for Rapid City to Sydney

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Top airline flying from Rapid City to Sydney

Discover the top airline that operate flights from Rapid City to Sydney. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,364Average$1,416FlexibilityNo cancel feeOn-time69%

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