Here are the best limited-time credit card bonus offers

CNBC Select rounded up the best welcome bonus offers and limited-time promotions currently offered by credit cards from Amex, Bank of America, Capital One, Chase, Citi and Discover.

Credit card issuers frequently run special welcome bonuses, amplified rewards rates and new promotions that allow cardholders to maximize benefits — but only for a limited time. These offers can allow you to more than double the rewards you'd typically earn on a purchase or take advantage of new money-saving perks.

With thousands of credit cards available, it can be hard to keep track of all these promotions — especially if you have multiple credit cards.

CNBC Select tracked down the best welcome bonuses and limited-time promotions currently offered.

This list is updated on a regular basis.

• American Express
• Bank of America
• Capital One
• Chase
• Citi
• Discover
• Other issuers

• Delta SkyMiles® Blue American Express Card: Earn 15,000 bonus miles after spending $1,000 in purchases on your new card in the first three months. Valid through 4/1/20.
• Delta SkyMiles® Gold American Express Card: Earn 60,000 bonus miles after spending $2,000 in purchases on your new card in the first three months, plus an additional 10,000 bonus miles after your first anniversary of card membership. Valid through 4/1/20.
• Delta SkyMiles® Platinum American Express Card: Earn 80,000 bonus miles after spending $3,000 in purchases on your new card in the first three months, plus an additional 20,000 bonus miles after your first anniversary of card membership. Valid through 4/1/20.
• Delta Skymiles® Reserve American Express Card: Earn 80,000 bonus miles and 20,000 Medallion® Qualification Miles (MQMs) after spending $5,000 in purchases on your new card in the first three months, plus, an additional 20,000 bonus miles after your first anniversary of card membership. Valid through 4/1/20.
• Delta SkyMiles® Gold Business American Express Card: Earn 60,000 bonus miles after spending $2,000 in purchases on your new card in the first three months, plus an additional 10,000 bonus miles after your first anniversary of card membership. Valid through 4/1/20.
• Delta SkyMiles® Platinum Business American Express Card: Earn 80,000 bonus miles after spending $3,000 in purchases on your new card in the first three months, plus an additional 20,000 bonus miles after your first anniversary of card membership. Valid through 4/1/20.
• Delta SkyMiles® Reserve Business American Express Card: Earn 80,000 bonus miles and 20,000 Medallion® Qualification Miles (MQMs) after spending $5,000 in purchases on your new card in the first three months, plus an additional 20,000 bonus miles after your first anniversary of card membership. Valid through 4/1/20.

• Exclusive limited-time discounts at dining, retail and travel merchants with Amex Offers. You have to opt in to take advantage of the offers.
• Get access to exclusive entertainment events, ticket presales and preferred seating for concerts, sporting events, and more in select cities.

• No offers at this time

• Exclusive discounts at dining, retail and travel merchants with BankAmericard Deals. You have to opt in to take advantage of the offers.
• Complimentary museum admission during the first full weekend of every month at participating museums, such as The Museum of Modern Art in New York and The Andy Warhol Museum in Pittsburgh.

• No offers at this time

• Capital One® Savor® Cash Rewards Credit Card: Earn 8% cash back on tickets purchased at Vivid Seats through 5/31/20.
• GM BuyPower® Card: Receive $1,000 in bonus earnings that can be used toward the purchase or lease of an eligible, new 2020 or 2019 Chevrolet, Buick, GMC or Cadillac vehicle. Must be a cardholder as of 1/2/20 to qualify and bonus earnings expire 3/2/20.
• Get access to exclusive entertainment events, ticket presales and preferred seating for concerts, sporting events, and more in select cities.

• IHG® Rewards Club Premier Credit Card: 140,000 bonus points after you spend $3,000 on purchases in the first three months from account opening. Expiration TBA.
• United℠ Explorer Card: 60,000 bonus miles after $3,000 in purchases in the first three months from account opening. Offer ends 4/2/20.
• United Club℠ Card: 75,000 bonus miles after $3,000 in purchases in the first three months from account opening. Offer ends 3/12/20.
• United℠ Business Card: 100,000 bonus miles after $10,000 in purchases within the first three months of account opening. Offer ends 4/2/20.
• United Club℠ Business Card: 100,000 bonus miles after $10,000 in purchases within the first three months of account opening. Offer ends 4/2/20.
• World of Hyatt Credit Card: Earn up to 50,000 bonus points — 25,000 points after spending $3,000 on purchases in the first three months from account opening and an additional 25,000 points after spending $6,000 on purchases in the first six months from account opening. Expiration TBA.
• Marriott Bonvoy Boundless™ Credit Card: Earn 100,000 bonus points after you spend $5,000 on purchases in the first three months from account opening. Offer ends 3/5/20.
• Marriott Bonvoy Bold™ Credit Card: Earn 50,000 bonus points after you spend $2,000 on purchases in the first three months from account opening. Offer ends 3/5/20.

• Bonus rewards on Lyft purchases: Chase Sapphire Reserve® (10X), Chase Sapphire Preferred® (5X), Chase Freedom®, Chase Freedom Unlimited® and Chase Freedom Student® (5%). Valid through March 2022.
• Complimentary Lyft Pink membership for one year: Chase Sapphire Reserve®, activate by 3/31/22.
• Complimentary or discounted DashPass membership: Chase Sapphire Reserve® and Chase Sapphire Preferred® (free for a minimum of one year), Chase Freedom®, Chase Freedom Unlimited®, Chase Freedom Student® and Chase Slate® (first three months free then a 50% discount for the next nine months). Activate by 12/31/21.
• $120 DoorDash credit: Chase Sapphire Reserve® cardholders receive a $60 DoorDash credit in 2020 and 2021. Activate by 3/31/22.
• Chase Freedom® and Chase Freedom Student®: Receive 5% cash back at gas stations, select streaming services and internet, cable and phone services from January through March 2020 (up to $1,500 in combined purchases, then 1%) after activation. Check out the Chase Freedom cash-back calendar for 2020.
• Exclusive discounts at dining, retail and travel merchants with Chase Offers. You have to opt in to take advantage of the offers.
• Get access to exclusive entertainment events, ticket presales and preferred seating for concerts, sporting events, and more in select cities.

• No offers at this time

• Transfer your Citi ThankYou Points to Qantas and revive 25% bonus Qantas points. Valid through February 22, 2020.
• Get access to exclusive entertainment events, ticket presales and preferred seating for concerts, sporting events, and more in select cities with Citi Entertainment.

• Discover it® Miles: Increased referral bonus of $100 when you refer a friend for the Discover it® Miles and they're approved by December 31, 2020. Maximum five referral rewards ($500) per calendar year. Each eligible friend who is referred by a Discover it® Miles cardholder will receive a $100 statement credit after making a purchase within three months of account opening.

• Discover it® Cash Back, Discover it® Balance Transfer, Discover it® Student Cash Back and NHL® Discover it®: Receive 5% cash back at grocery stores (excluding Target and Walmart), Walgreens and CVS from January through March (up to $1,500 in combined purchases, then 1%) after activation. Check out the full Discover it cash-back calendar for 2020.

Limited-time welcome bonus offers

• No offers at this time

Other promotions

• No offers at this time

For rates & fees of the Delta SkyMiles® Blue American Express Card, please click here.

For rates & fees of the Delta SkyMiles® Gold American Express Card, please click here.

For rates & fees of the Delta SkyMiles® Platinum American Express Card, please click here.

For rates & fees of the Delta Skymiles® Reserve American Express Card, please click here.

For rates & fees of the Delta SkyMiles® Gold Business American Express Card, please click here.

For rates & fees of the Delta SkyMiles® Platinum Business American Express Card, please click here.

For rates & fees of the Delta SkyMiles® Reserve Business American Express Card, please click here.

Information about the United Club℠ Card, United Club℠ Business Card, Chase Freedom®, Chase Freedom Student®, Chase Slate®, and the Capital One cards has been collected independently by CNBC and has not been reviewed or provided by the issuer of the cards prior to publication.