Exhibit 99.1

CARNIVAL CORPORATION & PLC REPORTS

FIRST QUARTER RESULTS

MIAMI (March 25, 2014) – Carnival Corporation & plc (NYSE/LSE: CCL; NYSE: CUK) announced non-GAAP net income of $2 million, or $0.00 diluted EPS for the first quarter of 2014 compared to non-GAAP net income for the first quarter of 2013 of $67 million, or $0.08 diluted EPS. For the first quarter of 2014, U.S. GAAP net loss, which included net unrealized losses on fuel derivatives of $17 million, was $15 million, or $0.02 diluted loss per share. For the first quarter of 2013, U.S. GAAP net income was $37 million, or $0.05 diluted earnings per share. Revenues for the first quarter of 2014 were $3.6 billion in line with the prior year.

Carnival Corporation & plc President and Chief Executive Officer Arnold Donald noted that first quarter non-GAAP earnings were better than anticipated in the company’s December guidance due to better than expected ticket prices for Carnival Cruise Lines and our continental European brands, as well as the timing of certain expenses.

Donald noted, “We see progress with our continental European brands and continue to be pleased with Carnival Cruise Lines’ pace of improvement. Exciting product innovations and strategic marketing initiatives at Carnival Cruise Lines have driven strong close-in demand resulting in sequential improvement in year-over-year quarterly ticket prices for the brand.” During the quarter, Carnival Cruise Lines announced an exclusive partnership with Dr. Seuss Enterprises to bring the beloved children’s brand and favorite characters to its fleet and the Carnival LIVE Concert Series, which brings the best in live music to the seas with a diverse roster of popular music artists including Jennifer Hudson, Lady Antebellum and Jewel. These brand building initiatives complement the continued roll-out of its Fun Ship 2.0 product enhancement program, as well as ongoing travel agent outreach and the unprecedented Great Vacation Guarantee. In addition, Carnival Cruise Lines was the national cruise line advertiser of the Sochi 2014 Olympic Winter Games, with its creative “Bobslide” campaign which targeted the family segment and furthered the brand’s new marketing campaign launched last fall.

Key metrics for the first quarter 2014 compared to first quarter 2013 and December guidance were as follows:

2014 Outlook

Since January, booking volumes for the remainder of the year are running well ahead of last year at lower prices. At this time, cumulative advance bookings for the remainder of 2014 are ahead of the prior year at prices below prior year levels.

Donald noted, “We have experienced a solid wave season, with booking volumes up almost 20 percent globally surpassing last year’s cumulative advance booking levels, albeit at lower prices. Many guests are booking further in advance, which increases visibility and builds confidence that yield comparisons will turn positive in the second half of 2014. Increased interest across our brands is an encouraging indication that our message is resonating as consumers recognize the strong value proposition and exceptional vacation experiences we provide.”

The company continues to expect full year 2014 net revenue yields, on a constant dollar basis, to be down slightly compared to the prior year (in line with the prior year on a current dollar basis). The company also continues to expect net cruise costs excluding fuel per ALBD for full year 2014 to be slightly higher than the prior year on a constant dollar basis.

Taking the above factors into consideration, the company forecasts full year 2014 non-GAAP diluted earnings per share to be in the range of $1.50 to $1.70, compared to 2013 non-GAAP diluted earnings of $1.58 per share.

Looking forward, Donald stated, “We are on the path toward improved financial performance. We are working hard to maintain the momentum with additional product initiatives, continuous improvement in our already high guest satisfaction levels and greater utilization of our global scale.”

Second Quarter 2014 Outlook

Second quarter constant dollar net revenue yields are expected to decrease 3 to 4 percent compared to the prior year. Net cruise costs excluding fuel per ALBD for the second quarter are expected to be up 2.5 to 3.5 percent on a constant dollar basis compared to the prior year due primarily to higher selling and administrative costs.

Based on the above factors, the company expects non-GAAP diluted earnings (loss) for the second quarter 2014 to be in the range of $(0.02) to $0.02 per share versus 2013 non-GAAP earnings of $0.07 per share.

Selected Key Forecast Metrics

Conference Call

The company has scheduled a conference call with analysts at 10:00 a.m. EDT (2:00 p.m. GMT) today to discuss its 2014 first quarter results. This call can be listened to live, and additional information can be obtained, via Carnival Corporation & plc’s Web site at www.carnivalcorp.com and www.carnivalplc.com.

Carnival Corporation & plc is the largest cruise company in the world, with a portfolio of cruise brands in North America, Europe, Australia and Asia, comprised of Carnival Cruise Lines, Holland America Line, Princess Cruises, Seabourn, AIDA Cruises, Costa Cruises, Cunard, Ibero Cruises, P&O Cruises (Australia) and P&O Cruises (UK).

Together, these brands operate 101 ships totaling 208,000 lower berths with eight new ships scheduled to be delivered between 2014 and 2016. Carnival Corporation & plc also operates Holland America Princess Alaska Tours, the leading tour company in Alaska and the Canadian Yukon. Traded on both the New York and London Stock Exchanges, Carnival Corporation & plc is the only group in the world to be included in both the S&P 500 and the FTSE 100 indices.

Cautionary Note Concerning Factors That May Affect Future Results

Carnival Corporation and Carnival plc and their respective subsidiaries are referred to collectively in this release as “Carnival Corporation & plc,” “our,” “us” and “we.” Some of the statements, estimates or projections contained in this release are “forward-looking statements” that involve risks, uncertainties and assumptions with respect to us, including some statements concerning future results, outlooks, plans, goals and other events which have not yet occurred. These statements are intended to qualify for the safe harbors from liability provided by Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical facts are statements that could be deemed forward-looking statements. These statements are based on current expectations, estimates, forecasts and projections about our business and the industry in which we operate and the beliefs and assumptions of our management. We have tried, whenever possible, to identify these statements by using words like “will,” “may,” “could,” “should,” “would,” “believe,” “depends,” “expect,” “goal,” “anticipate,” “forecast,” “project,” “future,” “intend,” “plan,” “estimate,” “target,” “indicate” and similar expressions of future intent or the negative of such terms.

Forward-looking statements include those statements that may impact, among other things, the forecasting of our non-GAAP earnings per share; net revenue yields; booking levels; pricing; occupancy; operating, financing and tax costs, including fuel expenses; net cruise costs per available lower berth day; estimates of ship depreciable lives and residual values; liquidity; goodwill and trademark fair values and outlook. Because forward-looking statements involve risks and uncertainties, there are many factors that could cause our actual results, performance or achievements to differ materially from those expressed or implied in this release. These factors include, but are not limited to, the following:

Forward-looking statements should not be relied upon as a prediction of actual results. Subject to any continuing obligations under applicable law or any relevant stock exchange rules, we expressly disclaim any obligation to disseminate, after the date of this release, any updates or revisions to any such forward-looking statements to reflect any change in expectations or events, conditions or circumstances on which any such statements are based.

CARNIVAL CORPORATION & PLC

CONSOLIDATED STATEMENTS OF OPERATIONS

(UNAUDITED)

(in millions, except per share data)

CARNIVAL CORPORATION & PLC

CONSOLIDATED BALANCE SHEETS

(UNAUDITED)

(in millions, except par values)

CARNIVAL CORPORATION & PLC

OTHER INFORMATION

FUEL DERIVATIVES

At February 28, 2014, our outstanding fuel derivatives consisted of zero cost collars on Brent crude oil to cover a portion of our estimated fuel consumption as follows:

CARNIVAL CORPORATION & PLC

NON-GAAP FINANCIAL MEASURES

Consolidated gross and net revenue yields were computed by dividing the gross and net cruise revenues, without rounding, by ALBDs as follows (dollars in millions, except yields) (a) (b):

Consolidated gross and net cruise costs and net cruise costs excluding fuel per ALBD were computed by dividing the gross and net cruise costs and net cruise costs excluding fuel, without rounding, by ALBDs as follows (dollars in millions, except costs per ALBD) (a) (b):

CARNIVAL CORPORATION & PLC

NON-GAAP FINANCIAL MEASURES (CONTINUED)

Non-GAAP diluted earnings per share was computed as follows (in millions, except per share data) (b):

Notes to Non-GAAP Financial Measures

Net revenue yields are commonly used in the cruise industry to measure a company’s cruise segment revenue performance and for revenue management purposes. We use “net cruise revenues” rather than “gross cruise revenues” to calculate net revenue yields. We believe that net cruise revenues is a more meaningful measure in determining revenue yield than gross cruise revenues because it reflects the cruise revenues earned net of our most significant variable costs, which are travel agent commissions, cost of air and other transportation, certain other costs that are directly associated with onboard and other revenues and credit card fees. Substantially all of our remaining cruise costs are largely fixed, except for the impact of changing prices and food expenses, once our ship capacity levels have been determined.

Net passenger ticket revenues reflect gross cruise revenues, net of (1) onboard and other revenues and (2) commissions, transportation and other costs. Net onboard and other revenues reflect gross cruise revenues, net of (1) passenger ticket revenues and (2) onboard and other cruise costs. Net passenger ticket revenue yields and net onboard and other revenue yields are computed by dividing net passenger ticket revenues and net onboard and other revenues by ALBDs.

Net cruise costs per ALBD and net cruise costs excluding fuel per ALBD are the most significant measures we use to monitor our ability to control our cruise segment costs rather than gross cruise costs per ALBD. We exclude the same variable costs that are included in the calculation of net cruise revenues to calculate net cruise costs with and without fuel to avoid duplicating these variable costs in our non-GAAP financial measures. In addition, we exclude gains and losses on ship sales including impairments, net from our calculation of net cruise costs with and without fuel as they are not considered part of our core operating business and are not included in our non-GAAP net income and non-GAAP earnings per share. Accordingly, we have changed our previously reported net cruise costs per ALBD and net cruise costs excluding fuel per ALBD for the three months ended February 28, 2013 from $127.85 to $127.74 and $96.73 to $96.63, respectively, to exclude losses on ship sales, net to be consistent with our treatment of these types of charges.

CARNIVAL CORPORATION & PLC

NON-GAAP FINANCIAL MEASURES (CONTINUED)

We have not provided estimates of future gross revenue yields or future gross cruise costs per ALBD because the quantitative reconciliations of forecasted gross cruise revenues to forecasted net cruise revenues or forecasted gross cruise costs to forecasted net cruise costs would include a significant amount of uncertainty in projecting the costs deducted to arrive at this measure. As such, management does not believe that this reconciling information would be meaningful.

In addition, because our Europe, Australia & Asia (“EAA”) cruise brands utilize the euro, sterling and Australian dollar to measure their results and financial condition, the translation of those operations to our U.S. dollar reporting currency results in decreases in reported U.S. dollar revenues and expenses if the U.S. dollar strengthens against these foreign currencies and increases in reported U.S. dollar revenues and expenses if the U.S. dollar weakens against these foreign currencies. Accordingly, we also monitor and report these non-GAAP financial measures assuming the 2014 period currency exchange rates have remained constant with the 2013 period rates, or on a “constant dollar basis,” in order to remove the impact of changes in exchange rates on the translation of our EAA brands. We believe that this is a useful measure since it facilitates a comparative view of the changes in our business in a fluctuating currency exchange rate environment.

We have not included in our earnings guidance the impact of unrealized gains and losses on fuel derivatives because these unrealized amounts involve a significant amount of uncertainty, and we do not believe they are an indication of our future earnings performance. Accordingly, our earnings guidance is presented on a non-GAAP basis only. As a result, we did not present a reconciliation between forecasted non-GAAP diluted earnings per share guidance and forecasted U.S. GAAP diluted earnings per share guidance, since we do not believe that the reconciliation information would be meaningful.