R12 493 Find Cheap Flights to Boulder

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boulder departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Low season

October

High season

December

Cheapest flight

R12 493
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Cape Town to Denver

FAQs - booking Boulder flights

  • How to fly to Boulder?

    You cannot fly directly to Boulder. KAYAK recommends you fly to Denver Intl (DEN) (53,76 km from Boulder). From there you can hire a car or take a taxi.

  • What airports are near Boulder?

    The closest airport is Denver Intl (DEN) (53,76 km). KAYAK recommends you fly to Denver Intl.

  • How far is Denver Intl Airport from central Denver?

    You’ll need to travel 30 km to reach the Denver city centre from Denver Intl Airport.

  • What is the name of Denver’s airport?

    There is only 1 airport in Denver, called Denver Intl Airport (DEN). It can also be referred to as Denver or Denver Intl.

  • How does KAYAK find such low prices on flights to Boulder?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Boulder.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Boulder?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boulder is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Boulder?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boulder with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Boulder?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boulder up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Boulder

  • There is no major airport in Boulder. It is instead served by Denver Intl Airport.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be July, August and September. The cheapest month to fly from South Africa is January.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boulder flight deals.
See more tips

Top 5 airlines flying to Boulder

Need help choosing which airline to fly with from South Africa to Boulder? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7,8
KLMOverall score based on 1349 reviews
7,2Entertainment
7,9Boarding
8,4Crew
7,7Comfort
7,3Food
Airline reviews

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

10,0 ExcellentAnonymous, Dec 2024BRU - AMS
Read more KLM reviews

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

Good food. Excellent crew service. Clean aircraft. Narrow seats and isle.

The food & entertainment really stood out in terms of quality. The nasi goreng & chicken satay were absolutely delicious. It’s great that KLM feature international cuisine.

Seats were nice and comfy. Crew was polite and attentive. Business class is awesome and worth the money.

Flight left a few minutes late, but that's it. I wish the seats could be wider and recline more.

The IFE was quite old, but it worked fine and the content was good. The cabin crew were excellent and the food was as also very good

It’s chaotic at the bus stop outside of the airport because of the Uber meeting point. You need to be alert and look for the KLM bus which is not branded or labeled. Incorrect information was provided to go to gate 28, when in fact the bus was at gate 27. On the plus side the bus left early and arrived early to Ottawa.

Great flight because I upgraded to Premium Comfort. Made a huge difference in the experience.

The plane was old Only 3 bathrooms available for economy The entertainment was old and the selection was poor

Georgian Airways check in staff initially denied us, because they thought passengers required transit visas to transfer on connecting flights. This required 70 minutes for them to call multiple people to confirm how transfers worked. They did not apologize once accepting our check in. Onboard, the four hour flight gave stale bread with spam slices as lunch. The only included drinks were still or sparkling water.

I did not get my baggage at my final destination..poor coordination with connecting flights with partner airlines (Saudi airways). Also the food was very mediocre.

Not a good one this time. The absence of internet without any information/notification ahead was really the unacceptable part. Also this new A350-900 has a serious legroom challenge for economy seats. It’s more like a medium-haul flight legroom configuration.

There was 2 hours delay before boarding and 2 hours delay after boarding while waiting in the plane

Boarding was a disaster being moved by Air France by bus to the plane. The plane should have been at the right gate.

They lost my baggage and I still have not got it back. Disgrace

They lost my lauggage and I STILL HAVE NOT RECEIVED IT. NO ONE IS HELPING! PLEASE HELP FIND MY LOST LAUGGAGE

Extremely poor. First - and oddly enough, Air France denied access to the Business Class lounge at CDG to all of us - although we were all flying Business Class. It is amazing that an airline denies lounge access to its passengers flying on business and paying several thousand dollars each ticket. Second, the food on Business Class on absolutely horrible. Air France must have made an effort to prepare bad tasting dishes (not even the ice cream was good). Third, the cabin temperature was too hot and although we complained many times, it never got cooler.

The first half from DC to Paris was very good and the staff were very helpful and humble BUT flight from Paris to Mumbai was sad. 1) it was packed. 2) no space on head compartment 3) crews were unresponsive to the calls 4) one crew member literally banged the bottle of water after giving me glass of water. A little water splashed on me and she was unapologetic 5) with so many hours of flight, little leg space should be taken care else don’t fill your airline till brim which affects your crew and they remove anger on us. 6) huge line for washrooms. 7) 2nd half journey was pathetic

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was 4 hours late. Almost missed my connecting flight no food or drinks on connecting flight. Overall terrible experience

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

I was at the back of the plane with earphones, and I could still hear the chatty flight attendants; I wasn't able to sleep at all.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

United airlines was top for my last trip in every way

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Horrible; seating was atrocious - inadequate leg room and seat width tight even for a small individual. Profits shouldn’t be everything!

The ac did not work and the plane was deployed for the AC BUT IT NEVER WORKED. I have high blood pressure and I was SWEATING AND NEARLY PASSED OUT. Do better.

For me it was a good experience… thank you Turkish Airlines

Old aircraft, very very low business class standards, no privacy between the seats, horrible old TVs, tiny bathrooms.

Good service, the airline also provided a traveling kit bag (tooth brush, socks, slippers, visor for sleeping).

The seats have to be one of the worst when it comes to comfort and you have to scramble around to out your handbag in the overhead. The food is still awful. Definitely will not travel on Turkish again and wouldn’t recommend it to anyone for sure.

It was very good and it was not my first time I always take Turkish air line for my travels

Food excellent Bathrooms improve cleanliness needed Staff fairly well attentive Entertainment fair Seats lie flat worked well

My flight was cancelled with no warning! I had to find out right at the airport when I arrived from my previous flight!

Excellent service. Made United 's business class look like a cattle car

I have been flying Turkish Airlines for the last 5 years it’s always great service, on time , excellent food, only one thing wasn’t reliable is their on board WiFi most of the time it doesn’t work.

Even the carry-ons were not allowed and upon getting down, we had the wait for the longest time for the baggage to put on the jet aisle. We had a short connection which British Airways kept changing and made out entire experience poor. I would never fly BA again.

The seat was very uncomfortable. It helped to use the foot rest. Could not sleep because of the seat.

The seats are incredibly uncomfortable. My luggage didn't make it on the flight from London to Nashville.

The plane itself is old and way overcrowded. The crew do a great job of trying to mitigate. It is just uncomfortable for over 8 hours, bearable, but barely. Boarding, and the baggage game, is ludicrous. Why charge extra to check bags when there is not enough room for everyone to "carry-on" and checking is needed? I do not think these issues would be different with other airlines, I believe it is the attitude that squeezes every penny out of each traveler.

Expected a lot better service paying for a business class seat. Seemed to be short on staff and did not get the service I expected.

I flew Club World and was SHOCKED at how totally absent the crew were for the duration of the flight. So much so that we received no drink service other than the post-departure cocktail and that was it. Wasn't even offered tea/coffee and the in-flight attention was so bad that literally minutes before landing the one crew member for our row was scrambling to pick up left-behind water bottles, glassware, trash. And the rest of the crew had already stowed all carts, he was cramming the trash into the lavatory trash can and was stashing the glassware frantically in the galley as we were on final approach. He was so scrambled he left two overhead lockers wide open (that he'd opened) for landing. Unbelievable!

The flight was several times changed. That was inconvenient, to sah the least.

They lost my special meal request and tried to tell me I didn't request it. I had the proof. Then they tried to get me to eat food I can't eat. No apologies

British airways keeps canceling our flights. I won’t be booking any future flights with them

I could not charge my phone the entire night or read my book, as the whole middle isle was without power.

Book Cheap Boulder Plane Tickets

Recent return flight deals

4/3Tue
2 stopsUnited Airlines
32h 58mJNB-DEN
18/3Tue
2 stopsUnited Airlines
28h 35mDEN-JNB
R16 780
6/3Thu
1 stop
25h 50mJNB-DEN
17/3Mon
2 stops
27h 20mDEN-JNB
R16 945
6/3Thu
2 stops
30h 18mJNB-DEN
17/3Mon
2 stops
27h 22mDEN-JNB
R17 036
4/3Tue
1 stopBritish Airways
29h 00mJNB-DEN
18/3Tue
1 stopBritish Airways
31h 50mDEN-JNB
R18 630
3/3Mon
2 stopsKenya Airways
43h 16mJNB-DEN
18/3Tue
2 stopsKenya Airways
33h 55mDEN-JNB
R18 887
12/4Sat
2 stopsKenya Airways
53h 37mJNB-DEN
20/4Sun
2 stopsKenya Airways
33h 55mDEN-JNB
R19 601
10/5Sat
1 stopBritish Airways
27h 15mJNB-DEN
24/5Sat
2 stopsBritish Airways
32h 13mDEN-JNB
R20 609
15/1Wed
2 stopsKLM
46h 15mCPT-DEN
17/7Thu
2 stopsKLM
43h 45mDEN-CPT
R30 684
13/1Mon
1 stopTurkish Airlines
33h 25mCPT-DEN
16/7Wed
1 stopTurkish Airlines
31h 45mDEN-CPT
R33 780
13/1Mon
1 stopTurkish Airlines
33h 25mCPT-DEN
18/7Fri
1 stopTurkish Airlines
31h 45mDEN-CPT
R34 055

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Recent one-way flight deals

5/2Wed
3 stops
48h 48mCPT-DEN
R12 493
3/2Mon
3 stops
48h 48mCPT-DEN
R12 603
3/2Mon
1 stopTurkish Airlines
33h 25mCPT-DEN
R13 043
20/1Mon
1 stopTurkish Airlines
33h 25mCPT-DEN
R13 080
30/1Thu
1 stopTurkish Airlines
33h 25mCPT-DEN
R13 409
23/1Thu
1 stopTurkish Airlines
33h 25mCPT-DEN
R13 446
3/2Mon
2 stopsKLM
32h 26mCPT-DEN
R16 890
20/1Mon
2 stopsAir France
30h 15mCPT-DEN
R17 000
19/1Sun
2 stopsKLM
45h 36mCPT-DEN
R17 513
10/1Fri
2 stopsBritish Airways
29h 32mJNB-DEN
R29 567

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Last minute flights to Boulder

Last minute flight, train and bus deals

23/12Mon
multi-stopUnited Airlines
31h 50mCPT-DEN
9/1Thu
multi-stopUnited Airlines
25h 10mDEN-CPT
R16 780
23/12Mon
multi-stopUnited Airlines
30h 03mCPT-DEN
9/1Thu
multi-stopUnited Airlines
23h 10mDEN-CPT
R17 018
24/12Tue
multi-stop
27h 10mJNB-DEN
22/1Wed
multi-stop
32h 25mDEN-JNB
R17 842
24/12Tue
multi-stopDelta
30h 50mJNB-DEN
22/1Wed
multi-stopDelta
27h 45mDEN-JNB
R17 971
24/12Tue
multi-stopDelta
30h 50mJNB-DEN
22/1Wed
multi-stopDelta
22h 56mDEN-JNB
R17 989
24/12Tue
multi-stopDelta
26h 20mJNB-DEN
22/1Wed
multi-stopDelta
28h 00mDEN-JNB
R18 026
23/12Mon
multi-stopKenya Airways
42h 46mJNB-DEN
22/1Wed
multi-stopKenya Airways
24h 31mDEN-JNB
R24 272
23/12Mon
multi-stopTurkish Airlines
33h 25mCPT-DEN
7/1Tue
multi-stopTurkish Airlines
31h 25mDEN-CPT
R25 353
24/12Tue
multi-stop
38h 40mJNB-DEN
22/1Wed
multi-stop
34h 05mDEN-JNB
R31 673
23/12Mon
multi-stopKenya Airways
36h 46mCPT-DEN
7/1Tue
multi-stopKenya Airways
46h 06mDEN-CPT
R34 531

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